Recover Excel Files from Virus-Infected Pen Drives for Free

Summary: Imagine you lost your important Excel file on which you had been working since the morning and in the next moment you realized that the file was not saved and you just lost hours of work. Wondering how to deal with this situation? Read this blog to know how Stellar free data recovery software can help you.

From making annual reports to business growth representation figures, excel is a commonly used program for organizing data, creating pivot tables, charts etc. People from all walks of life, know the importance of Excel and the part it plays. Although it is a common file, there is a probability that you may accidentally delete excel files while working or are unable to access it due to unexpected errors. In addition, one of the major issues users face is to recover excel files from a virus infected pen drive.

Pen drives have made it possible to store and carry our important files such as excel, word document, photos, videos, etc. with us day in and day out. They just fit perfectly in our pockets and are compatible with almost every device; hence, they are widely used for transferring data from one system to another. But what if your pen drive is infected by a virus and due to it you end up losing your excel files, how will you recover your excel files for free?

A user reported that his pen drive got virus-infected and to remove the virus from it, he ran an antivirus program which removed the virus but also deleted excel files stored on it.

When your pen drive is infected by a virus, the first thing you ought to do is stop using it, even not for removing virus as an antivirus utility may remove your files as well. Further, if you have a backup, then you can recover your excel files from it, else you can use these free data recovery methods to recover your excel files.

1. Free File Recovery Software Approach

Stellar Windows Data Recovery – Free Edition is an easy to use tool to recover files from a virus-infected pen drive. The software is equipped with powerful utilities to recover lost and deleted files for free. Further, it supports a wide range of file systems and is efficient in recovering files such as Excel, emails, word files, photos, audio and video files.

Using Stellar Windows Data Recovery – Free Edition, you can recover your files from all storage devices for free. Here’s how the software works:

• From the website, download Stellar Windows Data Recovery – Free Edition. Connect your pen drive to your system and launch the software
• On ‘Select What to Recover’ screen, select file types from the given option that you wish to recover. For instance, if you want to recover photos, then under Multimedia Files, select ‘Photos’ and click on ‘Next’

• From ‘Select Location’ screen, select the connected pen drive and click ‘Scan’

• The scanning process starts and once the process is complete, software lists all the recoverable files

• Select the files from the list and click on ‘Recover’ to save the files

2. Restore Excel File from the Previous Version

If excel files are deleted from your pen drive or from your system; then you can recover them from the previous version. This feature works when Windows Backup option is enabled, else, it will not work.

Follow these steps to recover excel files:

• Connect your pen drive to your system, go to This PC and navigate to the folder of excel files
• Select the folder, right-click on it and select ‘Restore previous versions’
• From the available version of excel files, select the required one and click on ‘Restore’

3. Use Command Line to Recover Excel Files

The Command prompt should be your first choice to recover excel files from the virus-infected pen drive. Here’s how command prompt recovers your files:

• Connect your virus-infected pen drive to your system and then in the search box type ‘CMD’ and hit ‘Enter’
• In the command window, type in attrib –h-r-s /s/ drive letter:\*.*”, for example, “attrib -h -r -s /s /d G:\*.*” and hit ‘Enter’

• Windows starts repairing the virus-infected pen drive and once the process is complete, you can access your pen drive and recover excel files.

Even after following the above-mentioned steps you’re unable to recover your excel files, then try a Home approach i.e. a data recovery tool.

To Sum Up

It is always a good idea to create a backup of important files since no one can anticipate what might go wrong. The scenario presented in the blog paints a clear picture of how you can recover your Microsoft excel files for free from a virus-infected pen drive. For quick and better results, you can always go with Stellar Windows Data Recovery – Free Edition.

Quick Fixes to Repair Microsoft Excel 2013/2016 Content related error

Summary: The blog outlines some quick tips to fix ‘We found a problem with some content’ error in Microsoft Excel 2013/2016. It explains manual procedure to resolve the error and also suggests an automated tool to perform the repair process to retrieve all possible data from a corrupt workbook.

Sometimes, when opening an MS Excel file, you may receive an error message that reads:

“**We found a problem with some content in ‘filename.xlsx’. Do you want us to try to recover as much as we can? If you trust the source of this workbook, click Yes.**“

Figure 1 – Excel ‘found a problem with some content’ Error Message

What Causes ‘We Found a Problem with Some Content’ Error?

There is no clear answer as to what results in the Excel error – ‘**We found a problem with some content in <filename.xlsx>**’. However, based on some user experiences, it appears that the error occurs due to corruption in an Excel workbook. It may turn corrupt when:

• You try opening the Excel file saved on a network-shared drive.
• A string is added in a cell in Excel, instead of a numeric value.
• Text values in formulas exceed 255 characters.

How to Resolve ‘We Found a Problem with Some Content’ Error?

Follow these tips to fix the Excel error:

IMPORTANT! Before you follow the tips to resolve the Excel error, keep these points in mind: Make sure you have closed all of the opened Excel workbooks. Try restoring Excel file data from the most recent backup copy. If you don’t have a backup copy, make a copy of the corrupt Excel file and perform repair and recovery procedures on that backup copy.

Tip #1: Repair Corrupt Excel File

File Recovery mode is a native Excel recovery utility that automatically opens whenever any inconsistencies are found in the worksheet. If Microsoft doesn’t detect any issue or fails to open the File Recovery mode, you can start it manually to recover the corrupt Excel file. To do so, follow the steps below:

1. Click on the File menu, and then select Open.
2. In the Open dialog box, navigate to the folder location where the corrupt Excel file is saved.
3. Select the corrupt file, and then click on arrow sign available next to Open button to select Open and Repair option.

Figure 2 – Open and Repair Feature in Excel

1. Next, click Repair to recover maximum possible data.
2. If the repair is not able to recover the data from the workbook, select Extract Data to extract all possible formulas and values from the workbook.

If repairing the corrupt Excel file doesn’t work, you can try an Excel file repair tool to fix corruption errors. You can also try to recover data from the corrupt file manually by following the next tips.

Read this: What to do when Open and Repair doesn’t work?

Tip #2: Set Calculation Option to Manual

To make the file accessible, try setting the calculation option in Excel from automatic to manual. As a result, the workbook will not be recalculated and may open in Excel. For this, perform the following:

1. Click File, and then click New.
2. Under New, click the Blank workbook option.
3. When a blank workbook opens, click File > Options.
4. Under the Formulas category, pick Manual in the Calculation options section, and then click OK.

Figure 3 – Select Manual in Calculation options

1. Now, again click on the File menu and then click Open.
2. Navigate to the corrupt workbook, and double-click it.

When the workbook opens, check if it contains all the data. If not, proceed to the next tip.

Tip #3: Copy Excel Workbook Contents to a New Workbook

Several users have reported that they were able to fix ‘We found a problem with some content in ’ error message by copying contents from the corrupt workbook to a separate workbook. Detailed steps are as follows:

1. Open the Excel workbook in ‘read-only’ mode, and copy all its contents.
2. Create a blank new workbook and paste the copied contents from the corrupt file to the new file.

Tip #4: Use External References to Link to the Damaged Workbook

Use external references to link to the corrupted workbook. By implementing this fix, data contents can be retrieved. However, it is not feasible to recover formulas or calculated values using this solution.

Follow the steps below:

1. In Excel 2013/2016, click File > Open.
2. Navigate to the folder where the corrupt file is saved.
3. Right click the file, select Copy, and then click on Cancel.
4. Again, click on File and then New.
5. Under New option, click on Blank workbook.
6. In the cell A1 of new workbook, type =File Name!A1 (where File Name indicates the name of the damaged workbook being copied in Step 3).
7. If Update Values dialog box appears, click the corrupt workbook, and choose OK.
8. If Select Sheet dialog box appears, click the appropriate sheet, and then click OK.
9. Select cell A1.
10. Next, click Home, and then click Copy (or, press Ctrl +C).
11. Starting in cell A1, select area approximately the same size as that of the cell range that contains data in the damaged workbook.
12. Next, click Home and select Paste (or click Ctrl + V).
13. Keep the range of cells selected, click Home and then Copy.
14. Finally, click on Home, click on the arrow associated with Paste and under Paste Values click on Values.

This will remove the link to the corrupt workbook and will retrieve data. But, keep in mind, the recovered data will no longer contain formulas or calculated values.

Alternative Solution – Stellar Repair for Excel

If the above manual methods fail to fix the ‘We found a problem with some content in Excel error’, try using the Stellar Repair for Excel software to resolve this error. The software helps repair and recover corrupt Excel files in just a few clicks. It can be used on a Windows 10/8/7/Vista/XP/NT machine to repair a corrupted workbook and recover every single bit of data from all the versions of the Excel workbook.

Read this: How to repair corrupt Excel file using Stellar Repair for Excel?

Conclusion

In this blog, we discussed some possible reasons behind Microsoft Excel 2013/2016 ‘We found a problem with some content’ error. The error may occur when an Excel file becomes corrupt. You may try repairing the corrupted Excel file manually by using the built-in ‘Open and Repair’ feature. Or, try the manual workarounds to extract data from the corrupt file discussed in this post. If the manual solutions don’t work for you, using Stellar Repair for Excel can come in handy in repairing the corrupt Excel (.xls/.xlsx) file and recovering the complete file data.

How to repair ‘recovered’ Excel file that won’t open

Summary: You may unable to open the Excel file after file recovery. When you try to open the file you may prompt up with error messages. This blog will discuss those errors and their solutions. Besides this, it also mentions Stellar Repair for Excel to repair and recover the severely corrupted Excel file with no data loss.

Consider a scenario: A Windows 10 user accidentally deletes a folder containing multiple Excel (XLSX) files created in Excel 2013. The worst part was all the deleted files were important, and he did not have a backup, which would help him in restoring the data. Nonetheless, he was able to recover those data using a professional data recovery software. Next, he tried opening each of the recovered Excel files one by one. In doing so, his happiness turned into disappointment. And the reason was, some of the recovered Excel files failed to open prompting error messages, of course, due to corruption. In this scenario, all he needed was to repair ‘recovered’ Excel files that did not open. Know how to fix damaged Excel files that were recovered after deletion in this blog!

Before delving into the Excel file repair methods, acquaint yourself with the probable causes leading to damaged or corrupt Excel files. Although not essential, it shall be an added advantage in helping you to prevent Excel file corruption issues in the future.

The standard Excel file(s) Corruption Causes

• Power Outage – A power outage due to which a system closes suddenly or unexpectedly is a common cause of damaged Excel files.
• Forced System Shutdown – Shutting down the system forcibly without closing MS Excel files is another common cause of corrupt Excel files.
• PC Virus or Bug – Computer viruses or bugs may affect one or more data file if owners do not protect their PCs with powerful updated antivirus. Same is the case with malware attacks. The chances are that your computer is infected with one of these and has affected a few Excel files.
• Issues with Storage Devices – Damaged or corrupted Excel files can also be the outcome of hard drive issues in the data storage systems. Logical hard drive damage is one of the most significant issues.

The damaged Excel files may prompt up with error messages. These may be:

• ‘Excel unable to read file’
• ‘Filename is not valid’
• ‘This file is not in a recognizable format’
• ‘abc.xls file cannot be accessed. The file may be read-only’
• ‘Excel found unreadable content in (filename)’, ‘The file is corrupt and cannot be opened’
• ‘Microsoft Excel has encountered a problem and needs to close’

There exist multiple methods to repair Excel files which got damaged after recovery, and are as follows: XML method,

• Open Excel files with HTML
• Inbuilt ‘Open and Repair’ feature/tool in Excel
• Repair damaged Excel file from TMP file by using Excel AutoRecover and AutoBackup features
• Recover data by configuring ‘calculation option’ as manual
• Moving/copying or transferring data to a different location
• Stellar Repair for Excel software

Taking Stellar software versus other methods, the former is a software solution that repairs damaged (XLS and XLSX) file quickly in major three steps: Select->Repair->Save, whereas others fall into the category of manual processes and consume both time and resources. Among the manual processes ‘Open and Repair’ method is the least time and resource consuming, which you can try quickly by following the below steps:

Open and Repair method

1. Click MS Excel tab and then the Open tab
2. Select the damaged Excel file for repairing purpose
3. Click the arrow present beside the Open Next, click Open and Repair tab
4. Click either of the following:
   • Repair tab (recovers maximum data)
   • Extract Data tab (Recovers values and formulas if the repair process fails in recovering the complete data.)

Note – Use ‘Extract Data’ if ‘Repair’ is not successful.

If the Manual method is not competent enough to repair recovered Excel files that don’t open then opt for a software-based solution of deploying Stellar Repair for Excel software.

Software with 100% integrity and precision

Conclusion

As an automated software, Stellar Repair for Excel is easy-to-use. You do not need technical know-how and skill set, as required to execute the manual processes. On analyzing all these methods, it is suggested to use Stellar Repair for Excel having a user-friendly GUI to repair Excel files that became damaged after recovery, or if the recovered Excel file(s) that you once deleted accidentally has become corrupt now. Above all, it is an excellent software with multiple features and advantages. Use it to address all your MS Excel issues or if any recovered Excel file is corrupt.

How to Resolve ‘Excel found unreadable content in filename.xlsx’ Error in MS Excel?

When opening an Excel spreadsheet in MS Office 2010/2007, you may get the following error message:

“Excel found unreadable content in ‘[filename].xlsx’. Do you want to recover the contents of this workbook? If you trust the source of this workbook, click Yes.”

On clicking ‘Yes’, you may face any of these scenarios:

Note: If you choose to click ‘No’, then open your MS Excel application and click file > Open. When the Open dialog box opens, browse and select the file showing the ‘Excel found unreadable content’ error and then choose ‘Open and Repair’ option. If this didn’t help, try using a third-party Excel repair tool to save time troubleshooting the issue and restoring the file with all its data intact.

Scenario 1: The following message may pop-up.

“Excel was able to open the file by repairing or removing the unreadable content. Excel recovered your formulas and cell values, but

some data may have been lost

. Click to view log file listing repairs errorxxx.xml.”

The message clearly states that your Excel file might open, but images may be lost and other such inconsistencies can crop up.

Scenario 2: The error is followed by another error message, like “The file is corrupt and cannot be opened“.

Watch our short video for a quick overview of the solutions to fix “Excel found unreadable content in filename.xlsx”

What Causes ‘Excel Unreadable Content’ Error?

You may encounter the ‘Excel file unreadable content’ error due to corruption of complete Excel file or corruption in certain areas (like Pivot Table, Formulas, Styles, or other objects) in the file. According to Microsoft, you may find it difficult to determine the root cause behind Excel file corruption. Corruption could occur in different scenarios, like power surge, a network glitch, copying and pasting corrupted data from another file, etc.

Also Read: How to recover data from corrupt or damaged Excel file 2010 & 2007?

Workarounds to Resolve the ‘Excel found unreadable content in filename.xls’ Error

There is no permanent solution to fix the ‘Excel found unreadable content’ error. But, following are some workarounds you can try to resolve the error.

Note: Before you try any of these workarounds, run Excel with administrator privileges and try opening the Excel file that is throwing the ‘unreadable content’ error. If this doesn’t fix the error, proceed with the workarounds below.

Workaround 1 – Try Opening the File in Excel 2003

Sometimes a problem in the current Excel version might prevent a file from opening. To resolve this error, try opening the problematic file in Excel 2003. If the file opens, save the data in a web page file format (.html) and then try opening the .html file in MS Excel 2010/2007. The detailed step-wise instructions are as follows:

• Open the .xls file in Excel 2003.
• When the file opens, click on File > Save.
• In the ‘Save As’ dialog box, choose Web Page (.html) as the ‘Save as type’ and then click ‘Save.’ Doing so will save everything from your .xls file, opened with 2003, in .html file format.
• Open the .html file in Excel 2010/2007. And then, save the file with .xlsx extension with a new name to avoid overwriting the original file.

Now, open the Excel 2010/2007 file and check if the error is fixed. If not, use the next workaround.

Workaround 2 – Make the Excel File ‘Read-only’

Try to open your ‘.xlsx’ file by making it ‘read-only’. Follow these steps:

• In Excel, click ‘File’ from the main menu.
• Select ‘Save’ for a new document or ‘Save As’ for a previously saved document in the screen that appears.

• From the ‘Save As’ dialog box, click Tools > General Options.

• Click on the ‘Read-only recommended’ checkbox to make the document read-only and then click ‘OK’.

Now open a new ‘.xlsx’ file and copy everything from the corrupt Excel file to this new file. Finally, save this file and try to open it again.

Workaround 3 – Move Excel File to a New Folder

Some users have reported that they could open their Excel file, following the ‘Excel unreadable content’ error, by simply moving the file to a different folder and saving it under a new name. You can also move the affected file to a new folder and try opening it. If this didn’t help resolve the error, follow the next workaround.

Workaround 4 – Install Visual Basic Component

At times, it is seen that installing the ‘Visual Basic’ component of MS Office 2010 resolves the ‘Excel found unreadable content 2010’ error. To do so, follow these steps:

• Navigate to Control Panel > Programs and select Microsoft Office 2010.
• Click ‘Change’ and then select ‘Add or Remove Programs’.
• Next, click the ‘plus’ sign provided next to Office Shared Features.
• Click ‘Visual Basic for Applications’. After that, right-click and choose ‘Run from My Computer’ and hit the ‘Continue’ button.
• Reboot your system when this process finishes.

Now check if the issue has been resolved or not.

What Next?

If none of the workarounds mentioned above works for you, use a professional Excel repair software, such as Stellar Repair for Excel. The software repairs corrupt MS Excel sheets without modifying their original content and formatting. In addition, it can repair single or multiple Excel (XLS/XLSX) files in a few simple steps.

Steps to Repair Corrupt Excel File using Stellar Repair for Excel Software

• Install and run Stellar Repair for Excel software.

• From the software main interface window, click ‘Browse’ to select the corrupt file. If you are not aware of the corrupt Excel file location, click on the ‘Search’ button.

• Click on the ‘Repair’ button to scan and repair the selected file.

• A preview window will open with recoverable Excel file data. Once satisfied with the preview result, click on the ‘Save File’ button on the ‘File’ menu to start the repair process.

• Select the destination to save the file.

• Click ‘OK’ when the ‘Repaired file saved successfully’ message appears.

 The repaired Excel file will get saved at the selected location.

How to Fix “Errors were detected while saving Excel” Error?

When trying to save the Excel file, you might face unexpected errors. The “Errors were detected while saving Excel” is one such error. It can also occur when using VBA in Excel. The complete error message appears as:

**“Errors were detected while saving [file name]. Microsoft Excel may be able to save the file by removing or repairing some features. To make the repairs in a new file, click Continue. To cancel saving the file, click Cancel.”
**

The error can occur if the features (Pivot tables, charts, macros) used in the Excel file get corrupted . However, there could be several other reasons behind the occurrence of the error. Let’s discuss them.

What Causes the “Errors were detected while saving Excel” Error?

There are various reasons why you encounter this error. Here are some of them:

• Incompatible pivot table in the Excel file
• Large or uncompressed images in the Excel file
• File-sharing properties are not allowing file saving
• Excel file is corrupted
• Large-sized Excel file
• File version incompatibility
• VBA code is corrupted

Ways to Fix the “Errors were detected while saving Excel” Error

You’re not able to save the Excel file if there is no storage space on your hard drive. So, first check if your hard drive has sufficient storage space to save the file. If this is not the case, then it might happen that your antivirus program is interrupting the saving process. To check this, temporarily disable your antivirus program and then try to save the file. If still your Excel is throwing the “Errors were detected while saving Excel” error, then follow the below given methods to fix the error:

Method 1: Open the Excel in Safe Mode and Disable the Add-ins

When you open Excel in safe mode, it opens without the third-party add-ins. This helps in finding out if any add-ins are causing the error.

 Here’s how to open the Excel in safe mode:

• Open the Run window by pressing Windows key + R.

• Type excel /safe in the Run window.

  ?

• Next, click on OK.

• It will open Excel in safe mode.

• Now, try to open and save the affected file.

If you are able to save the file without any issue, then this means that the error has occurred due to third-party add-ins or settings. You can try disabling the add-ins to fix the issue. To do this, follow these steps:

• First, open Excel.
• Then, go to the File tab and click Options.

• In Excel Options, click on the Add-ins

• Under the Manage section, select Excel Add-ins and then click on the Go

• In the Add-ins dialog box, unselect the add-ins under the Add-ins available option and click OK.

  

Note: Disabling add-ins does not remove them from the system. To remove them permanently, you need to uninstall them.

Method 2: Check the Excel File Name

Some users have observed this error when saving the Excel file with an invalid name. You can check the file name and ensure that it should not contain more than 218 characters. If the name exceeds the required limit, then try shortening the file name or move the file to a folder with a short path name.

Method 3: Copy the Data from the Affected File to a New File

If you are not able to save the Excel document, then try copying the data from the affected file to a new Excel file. Then, save the new file with a different name. This helps in resolving the issue.

Method 4: Check and Provide File Permissions

You may experience the “Errors were detected while saving Excel” issue when you do not have desired permissions to modify the folder in which your Excel file is located. To modify the folder, you should have read, write, and create permissions. You can check and provide the desired permissions using the below steps:

• Navigate to the Windows Program Files and then find the desired folder (where the Excel file is saved).
• Right-click on the folder and then choose Properties.
• Select the Security tab and then click
• Click on Change Permissions in the Advanced Settings
• Click Administrators and then click Edit.
• Now set the Apply to drop-down button to This Folder, Subfolder, and Files.
• Click on the Full Control field and then click Apply > OK.

Method 5: Check Pivot Tables in Excel Sheet

You can review Pivot tables to see if they are causing the “Errors were detected while saving Excel” error. To do so, follow the below steps:

• Click Power Pivot > Manage.

  

• Check the tabs in the Power Pivot

• Check if all the formulas used in the table are correct. Sometimes, even a small typo can create an issue in Excel.

Method 6: Repair Your Excel File

The “Errors were detected while saving Excel” issue can also occur if the Excel file is corrupted. In such a case, you can take the help of the built-in utility in Excel – Open and Repair to repair your Excel file. Here’s how to use the tool:

• In Excel, click the File tab and then click Open.
• Click Browse to select the desired file.
• The Open dialog box is displayed. Click on the corrupted file.
• Click on the arrow next to the Open button and then click Open and Repair.
• Click on the Repair

• After repair, a message will appear (as shown in the below figure).

  

• Click Close.

 However, sometimes, the Open and Repair utility fails to fix the file if it is severely corrupted or large-sized. In such a case, you can take the help of a third-party Excel repair software, such as Stellar Repair for Excel. The tool performs a comprehensive scan of the corrupted Excel file to fix the issues and recover all the items from the file without changing the original formatting. It can recover pivot tables, charts, images, engineering formulas, etc. The tool is compatible with Windows 11/10/8.1/8/7. You can download the free trial version of the tool to evaluate its functionality.

Closure

Many Excel users reported facing the situation when they are saving the Excel file. You can check the file’s compatibility to fix the “Errors were detected while saving Excel” issue. If you are getting this error in a Macro-enabled file then you can try deleting the VBA project from a document to resolve the issue. However, deleting the entire VBA code cannot be a better solution as it can lead a data loss in the Project you are working on. In the above article, you have learned the reasons behind the issue and discovered how to fix the error. Follow the methods and if none of them works then try using Stellar Repair for Excel. It is an advanced tool that can quickly repair corruption in Excel worksheets at any level. It lets you restore the corrupted components from the corrupted file without removing the existing data.

How to fix “damage to the file was so extensive that repairs were not possible” Excel error?

Summary: Unable to resolve “damage to the file was so extensive that repair was not possible” error in Excel? Read this post to discover more details about the error, possible causes, and how to rectify the error. To save time & efforts, you can also try an Excel file repair software to resolve the “damage to the file…” error in a few clicks.

When opening a workbook in Microsoft Excel 2003 or later, you may encounter an error message,

“Damage to the file was so extensive that repairs were not possible. Excel attempted to recover your formulas and values, but some data may have been lost or corrupted.”

The error message may also occur while exporting an Excel file. Let’s find out what causes this error and what we can do to fix it.

Reasons Behind “Damage to the File Was So Extensive That Repairs Were Not Possible” Error

Your Excel file may be corrupt, oversized, virus-afflicted, etc., which can trigger this error and make the repair impossible. Below are some common reasons.

• Large or oversized excel files hindering export
• Data restore errors
• Field length of a cell is more than 256 characters
• Software conflicts, viruses, network failure
• Unable to open files in upgraded versions
• Errors on output exceeding 64000 rows
• Limited system resources (such as RAM, internal memory)

In a nutshell, the error generally happens if Excel discovers unreadable content, which may also interrupt file saving in Excel.

How to Resolve “Damage to the File Was So Extensive That Repairs Were Not Possible” Error?

Here are a few methods you can follow to fix or resolve the Excel repair error.  

Method 1: Perform Basic Troubleshooting

When opening a corrupt workbook, Microsoft Excel automatically initiates the file recovery mode to repair the corrupt file. However, if it fails to perform automatic recovery, then follow these basic troubleshooting steps:

• This error mainly happens when you try to open the Excel file in an upgraded version.  Try to open the file in an older version of Excel. You might be able to open it.
• Try saving the file with a different file name.
• Use a different file extension to save the file.
• You can save the Excel file as HTML and then open it. However, an HTML file might not save conditional formatting.
• Close other opened applications on the system which may be causing the error.
• Select less data for export at once.
• Delete worksheets if copied from another document; for instance, delete any file or screenshots you have imported.
• Open the file on another system.

If the error persists, then use the manual method to repair a workbook using the below steps:

• Go to the “File” tab.

• Select Open and select the damaged spreadsheet from the Recent Workbooks section on the right, if listed. However, if you cannot find the file in the Recent Workbooks section, click on “Browse” and choose the corrupted workbook.

• Click the drop-down arrow on the Open tab and select Open and Repair.

Method 2: Check if exporting a Heavy File is Causing Resource Limitations in Excel

Sometimes, when you try to export an Excel sheet carrying a huge database, you may face memory errors in older Excel versions like Excel 2003. Here, you’ll have to decrease the amount of data as Excel 2003 does not permit exporting extensive data beyond a limit. However, modern versions such as Excel 2007, 2010 & 2016 allow exporting a large amount of data and utilize more RAM than the older versions.

Following are some other workarounds:

• Use a lesser number of query presentation fields to re-generate the query. Then, again re-enter those fields.
• Decrease the multi-line string field data text up to 8000 characters.

Method 3: Copy Macros and Data to Another Workbook (Empty) in an Advanced Excel version

If the issue is occurring due to version incompatibility, i.e., if the file opens easily in the older version but shows errors in the new version. You can:

Use the older version to open the file or copy the data or macros in an empty workbook of the new version of Excel.  

Copying the Macros in the Workstation

In Microsoft Excel, you can use the Visual Basic Editor to open the workbook with macro on another workbook by copying the macro. Both VBA tools and Macros appear in the Developer section of the excel file. This option is disabled by default. So first, you need to enable it.

Follow the instructions to enable it:

• Open Excel and go to File > Options.

• Click “**Customize Ribbon.**”

• Look at the right side of the pane and ensure the Developer tab is checked.

• Click OK.

Once you have enabled the Developer tab, follow the steps to copy the macro from one workbook to another:

• First, open both the workbooks- the workbook containing the macro and the workbook in which you need to copy the macros.
• Locate the Developer tab.

• Select Visual Basic to display the “Visual Basic Editor.”

  

• Go to the View menu in the Visual Basic Editor.

• Select Project Explorer.

• In the Project Explorer window, drag the module you need to copy to the destination workbook. For example:

Module 1 has been copied from Book2.xlsm to Book1.xlsm

Method 4- Restore the backup file

The workbook backup helps to open the corrupted or mistakenly deleted file. Sometimes, the issue can be fixed using the Recover Unsaved Workbook option in Excel. Here’s the list of steps to recover the files in Microsoft Excel:

• Go to the File tab on Excel.

• Click Open.

• Search on the top-left of the screen to click Recent Workbooks as below:

• Next, scroll down to the bottom.
• Click the “Recover unsaved workbooks” button.

• Scroll and find the lost file.
• Now double-click on the file to open.

Conclusion

“Damage to the file was so extensive that repairs were not possible” error can be fixed with the above troubleshooting methods or by using a third-party Excel repair tool, like Stellar Repair for Excel . Although There are no standard resolutions to fix the excel error as they may vary with different scenarios. In some cases, the manual methods might be time-consuming or fail to fix the error or recover the excel file. Hence, using an excel file repair tool may be the best option! It extracts data from the corrupted file and saves it to a new Excel workbook, which you can open and edit.

File Format and Extension of [filename] don’t Match in Excel File

Summary: The “File format and extension of [filename] don’t match. The file could be corrupted or unsafe” error message indicates that the Excel file you’re trying to open is unsupported, unsafe, or corrupted. Read this article to learn more about this error and how to fix this error. It also mentions an advanced Excel recovery tool to repair the corrupted Excel file and retrieve all its data in a few clicks.

You can encounter the “File format and extension of [filename] don’t match. The file could be corrupted or unsafe” error when the Excel application detects any issue with the file. This happens when you try to open an old version file format in a newer version or if the file is received from an unsafe destination. This can prevent you from opening the Excel file.

As indicated from the error message, this error occurs due to the following reasons:

• The file has incorrect file extension.
• The file is corrupted.
• The file you are trying to open is protected.

Now, let’s see how to resolve this Excel error.

Methods to Fix the “File format and extension of [filename] don’t match” Error

Try the following methods to troubleshoot the “File format and extension don’t match” error in Excel.

Method 1: Rename the Excel File

You can face the “File format and extension don’t match” issue if the file has incorrect extension. It can occur if the file extension has been altered or you’ve mistakenly saved the file with incorrect extension. To fix this, you can try renaming the Excel file with the correct file extension.  

Method 2: Check the Default Excel File Format

Different versions of Microsoft Excel use different default file formats. For example, .xls is the default file format of older versions (2003 and lower) of Excel, whereas .xlsx format is used by the newer versions (2007 and later). Opening the Excel file with an incompatible extension can cause the “File format and extension don’t match” issue. You can check the Excel version you are using and ensure it’s compatible with the Excel file you are trying to open.

Method 3: Change the Protected View Settings

You may receive the “File format and extension of excel don’t match” error if the Excel file is protected. You can check and try disabling the Protected View settings .  

Caution: Changing the Protected View settings can put your system at risk. If the Excel file is being downloaded from the internet, it may contain viruses that can infect your system. So be careful before disabling the Protected View settings.

Steps to Change Protected View Settings in Excel:

• In the Excel’s File menu, click on Options.
• Select Trust Center > Trust Center Settings.

• Under Trust Center, select Protected View and disable the below three options:
• Enable Protected View for files originating from the internet.
• Enable Protected View for files located in potentially unsafe locations.
• Enable Protected View for Outlook attachments.

• Click OK. Then, try to open the Excel file.

Method 4: Check and Provide the Excel File Permissions

Sometimes, you can get the error if you don’t have sufficient permissions to open the Excel file. This usually happens when you try to open the Excel file received from other sources. You can check and provide the desired permissions to fix the error. Here are the steps:

• Locate the affected Excel file, right-click on it, and select Properties.

• In the Properties window, click the Securities option and select Edit.

• In the Security window, under ‘Group or users name’, select the user names. Check the file permissions and make sure Full Control is enabled. If not, then click on the Add option.

• Click on the Advanced option in the Users, Computers, Service Accounts, or Groups window**.**

• Click the Find Now option. A list of all users and groups appears in the search field.

• Select “Everyone” from the list and then click OK.

• In the object names field, you will see ‘Everyone’. Click on OK.

• In the Permissions window, select “Everyone” and enable all options (Full Control, Modify, Read & Execute, Read, and Write) under Permissions for Everyone.

• Click Apply and then OK.

Method 4: Repair your Excel File

As the error message indicates, corruption is one of the causes of the “File format and extension of [filename] don’t match” error. If your file is corrupted, you can repair it using Microsoft’s built-in Open and Repair tool. Here are the steps to run the Open and Repair tool to repair corrupted Excel file:

• In Excel, click on File.
• Click Open and then click on Browse to select the corrupted Excel file.
• In the Open dialog box, click the Excel workbook (in which you are facing the error).
• Click the arrow next to the Open button and select Open and Repair.
• Then, click Repair to recover as much data as possible.
• The Excel prompts a message after the repair process is complete. Click Close.

The Open and Repair utility may fail to give the intended results. In such a case, you can repair the corrupted/damaged Excel file using a specialized Excel repair tool . Stellar Repair for Excel is one such tool that can repair severely corrupted Excel files. With the help of this tool, you can quickly recover all the objects from the Excel file. The tool has a simple user interface that even a non-technical can use to repair the Excel files. The tool can also repair multiple Excel files at once. You can check the tool’s functionality by downloading its demo version.

Closure

You can encounter the “File format and extension of [filename] don’t match” error due to different reasons. To resolve the issue, you can check the file extension, permissions, protected settings, etc. If you suspect the error has occurred due to corruption in the Excel file, you can try repairing the Excel file using the Open and Repair tool. If nothing works for you, then try Stellar Repair for Excel . It can repair highly damaged Excel files and recover all the data while preserving the file properties and cell formatting. The tool can help you fix all the common corruption-related errors quickly.