How to Repair Multiple Excel Files by Using Stellar

With Stellar Repair for Excel, it is quite easy and simple to repair multiple MS Excel (XLS and XLSX) files that are damaged. This is because the software has a self-explanatory interface and hence is a Do-it-yourself software. Nonetheless, when using this software to repair multiple Excel files, you would have to add all of the files into the software by following a few pre-defined steps. Follow the steps mentioned below:

• Launch Stellar Repair for Excel software.
• Under Home menu, click Select file

• Click Browse and select corrupt Excel files. Select the checkbox to repair multiple files.

• Click Repair
• The software provides the preview facility. You can check the it on left pane.

• Save the repired filr ether Default location or Select New Folder radio button.

Stellar Repair for Excel Stellar Repair for Excel is the best choice for repairing corrupt or damaged Excel (.XLS/.XLSX) files. This Excel recovery software restores everything from corrupt file to a new blank Excel file.

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How to fix Microsoft Excel has stopped working error?

Summary: This blog discusses the possible reasons behind ‘Microsoft Excel has stopped working’ error and solutions to resolve the error manually. You can use Stellar Repair for Excel to quickly repair the file and recover all its data in a hassle-free manner.

Has your Microsoft Excel program stopped working or is acting strange? Excel not responding is a common issue you may experience on launching the application or opening a spreadsheet.

Figure 1 – Microsoft Excel Has Stopped Working Error Message

Possible Causes behind ‘Microsoft Excel has Stopped Working’ Error, and Solutions Thereof

Note: Several users have reported about encountering the ‘Excel has stopped working’ issue on Windows 10, 8, and 7 OS after installing an update for Excel (KB3118373). If you too have installed the update, then uninstall it and check if it solves the error. For detailed information, refer to this link .

[Solved] : How to Fix MS Excel Crash Issue

Microsoft Excel may stop responding , hang, freeze, or stop working due to several reasons, such as in compatible add-ins. In such a case, you may receive one of the following error messages.

• Excel has stopped working

• Excel is not responding

• A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available.

Why Does Excel Keep Crashing?

If Excel keeps crashing on your PC while opening a workbook, saving Excel file, scrolling or editing cells, etc., it indicates a problem with your Excel program or the Excel file.

Microsoft Excel may crash due to any one or more reasons given below,

•  Incompatible Add-Ins
• Outdated MS Excel program
• Conflict with other programs or antivirus tool
•  Excel file created by third party software
• Problem with network connection
•  Combination of Cell formatting and stylings
• Problem with MS Office installation
• Partially damaged or corrupt Excel file

Problems Caused by Excel Crash Issue

Microsoft Excel crash may cause damage to Excel file and also lead to Excel (XLS/XLSX) file corruption.

Such corrupt Excel files can’t be opened or accessed via MS Excel app. If you try to access a corrupt Excel file, MS Excel may fail to open the file or stop responding and crash. Additionally, you may receive the following or similar error message,

In such a case, you should immediately try to recover the Excel file. You may do so by restoring the Excel file from backup or by using an Excel File Repair software. Otherwise, continue following this guide.

How to Solve Excel Crash Issue?

Before heading to solutions, follow these troubleshooting steps to resolve the Excel Crash issue.

Step 1: Copy File to Local Drive

If you are trying to access and edit or view an Excel file from a network drive, try moving the file to local drive. This will help you find if there is something wrong with the file or the network.

Step 2: Ensure Sufficient Memory

Excel files can grow fairly large when you start adding lots of formatting and shapes. Make sure that your system has enough RAM to run the application.

If you often work with large Excel files and complex data values& formulas, then install 64-bit versions of MS Office. It will give you an advantage of larger processing capacities and prevent Excel from crash or freeze.

Step 3: Check If Excel is Open and In Use by Another Process

Open Task Manager and close all processes or apps (tasks) that may be using or have access to your Excel file that you are working on. You can find this detail in status bar of Excel program at the bottom of program window.

After closing the tasks, try to access the Excel file and check if this fixes the performance and crash problem in Excel.

Step 4: Test and Repair Excel File

Create a copy of the Excel file and install Stellar Repair for Excel software. It’s free to download. Scan and repair your Excel file using the software. After repair, save the Excel file at your desired location and then open the Excel file in the MS Excel program.

This should ideally fix all the issues with Excel.

However, if the Excel program still crashes, the problem lies within the system or program. Follow the solutions discussed in this guide to try to fix the Excel crash issue.

NOTE: To save repaired Excel file using the mentioned software, you must purchase the activation key and activate it.

Solutions to Fix MS Excel Crash Issue

Following are some solutions to resolve problems with MS Excel such as,

• Excel not responding
• Excel won’t open
• Excel keeps crashing

Follow these solutions in the given order. In case a method doesn’t work, move to the next one.

Click here

### Solution 1: Restart Excel in Safe Mode

By starting MS Excel in safe mode, you can run the program without loading the Excel add-ins and with limited features. But COM add-ins are excluded.

To launch Excel in safe mode, close MS Excel and follow these steps,

• Create a shortcut of MS Excel (.exe) on Desktop
• Press and hold the Ctrl key while launching the program
• Click ‘Yes’ when a prompt appears to confirm

Alternatively, press Windows+R, type excel /safe and press ‘Enter’. Use this to open Excel in safe mode on Windows 10, 8.1, 8, or 7 system.

Now try to open and access the Excel file and check if the issue is resolved. If it’s not, head on to the next solution.

Solution 2: Check and Remove Faulty Add-ins

In case Excel doesn’t crash in Safe Mode, it’s possible that some faulty add-ins are the culprit behind frequent Excel crash and freeze. These Excel add-ins may interfere or conflict with the Excel program.

Find and remove the faulty add-in. It can resolve the issue. To do so, follow these steps,

• Restart Excel in normal mode and go to File> Options> Add-ins
• Choose COM Add-ins from the drop-down and click Go

• Uncheck all the checkboxes and click OK

• Restart Excel and check if the issue is resolved
•  If Excel doesn’t crash or freeze anymore, open COM Add-ins and enable one add-in at a time followed by Excel restart. Then observe Excel for freeze or crash problem

This will help you find out the faulty add-in, which is causing the problem. Remove the add-in which is causing the problem to resolve the issue. If that doesn’t fix, move to the next solution.

Solution 3: Check and Install the Latest Updates

If you haven’t set Windows to Download and Install Updates automatically, do it now.

Apart from updating the operating system, latest Windows updates sometimes fixes bugs for other applications installed on the system such as MS Office. Often installing an important update that you might have missed may correct the Excel crash problem.

You can also update MS Office manually. Follow these steps,

Go to File > Account

 Under Product Information, select Update Options and click Update Now

If you have installed MS Excel from Microsoft Store, open the store and update your Office applications.

NOTE: This also works if you can’t open Excel file or Excel crashes after Windows upgrade from Windows 7 or Windows 8/8.1 to Windows 10.

After installing the latest MS Office updates, check if Excel works fine. If not, head to the next solution.

Solution 4: Clear Conditional Formatting Rules

If a sheet is causing Excel to freeze or crash, there might be a problem with that particular sheet. In such a case, you may try clearing the Conditional Formatting rules. The steps are as follows,

• Under Home, click ‘Conditional Formatting > Clear Rules> Clear Rules from Entire Sheet’

• You may repeat this step for all other sheets in the Excel workbook
• Then click File> Save as and save the Sheet as a new file at a different location

This avoids overwriting or making changes to the original Excel file. Once done, try working on the sheet.

If this doesn’t work out, move to the next solution.

Solution 5: Remove Multiple Cell Formatting and Styles

If a workbook is being shared and edited by others on different platforms then it’s possible that many cells are formatted differently. This can cause issues with Excel such as crash and freeze. It can also lead to Excel file corruption. The problem mostly occurs when a workbook contains multiple worksheets using different formatting.

You can follow this guide to remove different cell formats and styles, and then open the Excel file.

Solution 6: Disable Microsoft Excel Animation

Animations require additional processing power and resources. By disabling animations in Excel, you may resolve Excel freeze and crash issue. This also improves MS Excel performance.

To disable the animations in MS Excel, follow these steps:

• Go to File > Options
• Click ‘Advanced’ and check ‘Disable hardware graphics acceleration’animation

• Click ‘OK’ to close the window and then restart MS Excel

This has helped many users in fixing the Excel crash issue. If it doesn’t work for you, head to the next solution.

Solution 7: Check If Excel File is Generated by a Third-Party Application

There are applications which you may have used to generate Excel files to fetch data. For instance, downloading data from Google Analytics in Excel format.

Sometimes, these Excel files are not generated correctly by such third-party apps. Thus, some features in Excel may not work as intended when you access the files in MS Excel.

In such a case, you should get in touch with the app developer for help with the file or use Stellar Repair for Excel to repair such Excel files.

Solution 8: Check If Antivirus or Other Apps are Conflicting with MS Excel

Ensure your antivirus is up-to-date and not conflicting with MS Excel. An outdated antivirus tool may conflict with Excel which can cause the application to hang, freeze, or crash.

• Update your antivirus
• Try disabling the add-in or integration between Excel and antivirus. See if it works

Alternatively, you may disable the anti-virus tool temporarily to check if it is the culprit behind Excel performance issue and crash. If that resolves the problem, get in touch with your antivirus vendor and report the problem.

They might provide you with a better solution or workaround to fix this problem without disabling the antivirus protection.

IMPORTANT NOTE: Disabling or altering antivirus protection makes your PC vulnerable to malicious attacks and virus or malware intrusion.

Solution 9: Clean Boot Windows to Inspect the Cause Behind Excel Crash

When Windows boot, it starts several processes, services, and application during start up automatically, which runs in the background.

These startup apps and services can interfere with other applications such as MS Excel. To find out if that’s the cause behind Excel crash, you can perform a Clean Boot.

This helps you identify processes, services, or applications that are conflicting with Excel. Steps to perform Clean Boot are as follows,

• Press Windows key + R, type MSConfig, and press ‘Enter’
• In System Configuration window, click on the General tab and choose Selective startup

Uncheck ‘Load startup items’ and click ‘OK’

After this, close all running applications and restart your PC

Check if the crash problem with Excel is resolved. Uninstall the conflicting apps or update them. If your issue is not resolved, follow the next solution.

Solution 10: Repair or Reinstall MS Office

Repairing Office programs may also resolve Excel crash issues if caused by damaged MS Excel program or MS Office files. The steps are as follow,

• Close all MS Office apps and open the Control Panel
• Click Uninstall a program under Programs

• Click on Microsoft Office and then click on the Change option
• Choose ‘Quick repair’ and then select ‘Repair’
• Click ‘Continue’ to repair MS Office installation

You may also try ‘Online Repair’ if this fails to fix the issue. After repair, if the Excel issue persists, reinstall MS Office.

Need More Help?

If none of the above-mentioned solutions worked for you, it indicates that the problem is not with the Excel program but with the Excel file. If you haven’t tried the Stellar Repair for Excel software, do it now.

Select the Excel file which is causing the problem and repair it with the software. It’s a powerful Excel repair software that can fix all the problems with Excel files (XLS/XLSX). It repairs corrupt and severely damaged Excel files.

The software is compatible with all Excel files created using MS Excel 2019, 2016, 2013, 2010, 2007, 2003 or 2000.

After repairing and saving the Excel file, you can open it in your MS Excel program and work on it without any performance issue. To know more about this software, visit this page.

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.

![Add-ins Window](https://www.stellarinfo.com/public/image/catalog//article/Repair-Office-Documents/errorsweredetected/add-ins-window.jpg)

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.

Filter Not Working Error in Excel [Fix 2024]

Summary: The filter is not working issue in Excel can occur due to several reasons, like blank rows, hidden rows, merged cells, corrupted data, etc. In this post, we will mention the reasons why the filter is not working correctly in Excel and several fixes to resolve the issue. We will also mention an advanced Excel repair tool to repair the Excel file if corruption in file is the cause of the issue.

You can use the Filter function in Excel to filter data in large-sized Excel files quickly. While using Excel filters, sometimes, you face a situation where the filter is disabled or may fail to function properly.

The Excel filter usually fails to work if you have not selected the complete and correct range of data. Let’s learn more about the “Sort and Filter not working in Excel” issue and look at the possible methods to fix it.

Why the Filter is not Working in Excel?

You can face the “filter is not working” issue if you are applying the filter on a protected worksheet or trying to find the data from a hidden row. Besides this, there could be many other reasons contributing to this issue, such as:

• The data you are trying to filter is in merged cells.
• The Excel file automatically selected the data up to the first empty cell, excluding the remaining rows.
• Grouped sheets in Excel file.
• Blank row in the Excel sheet.
• You are trying to apply a filter on an invalid data range.
• The workbooks in which you’re facing the filter issues are corrupted.
• You are specifying incorrect criteria in the filter columns.

Solutions to Resolve the Filter is not Working Issue in Excel

There might be two scenarios: the Excel filter option is disabled/grayed out or the filters fail to function properly. You can follow the given troubleshooting solutions to resolve the issue based on the scenario you’re facing.

Scenario 1 – Filter Option is Disabled or Grayed Out

Method 1: Check and Un-group the Worksheet

When you apply filters to a single sheet in a grouped set, Excel disables the filter option in other sheets within the group. You can check the grouped sheets and try ungrouping them to enable the filter option. Here’s how to do so:

• In the Excel file, go to the Group section.

• Right-click on the Ungroup Sheets.

Alternatively, you can press the Shift + Alt + Left keys to ungroup the sheets.

Method 2: Unprotect Worksheet

The “disabled Excel filter” issue can also occur if your worksheet is protected. You can unprotect the worksheet to enable the filter option. To do so, go to the Review tab and then select Unprotect Sheet.

Method 3: Check and Uninstall Excel Add-ins

Sometimes, the Excel filter gets disabled due to faulty or corrupted Excel add-ins. You can run the Excel in Safe mode to check whether the issue has occurred due to add-ins. To do this, type excel /safe in the Run window and click OK.

In safe mode, if you see the filter option, it indicates some problematic Excel add-ins were causing the issue. In such a case, you can check and uninstall the faulty Excel add-ins to fix the issue.

Scenario 2 – Filter is not Working

Method 1: Try Clearing Filters

Sometimes, the Excel filter fails to work correctly if some filters from the previous sessions are still active. In such a case, you can clear the applied filters. Follow the below steps:

• In Excel file, click Sort & Filter option.
• Select clear.

Method 2: Select Entire Data

The filter not working issue in Excel can occur when the range selected for filtering is incomplete or incorrect. You need to make sure that you’ve selected the entire data range in Excel. You can use the Ctrl+A keys to select the entire content in the worksheet.

Method 3: Check and Delete Blank Cells from the Table’s Columns

When you apply a filter to the data, Excel expects data to be in a continuous range. Excel filters do not consider the blank cells, thereby resulting in incorrect functioning of the filter. To resolve this issue, check and delete all blank cells. In case your Excel file is too large to delete the blank cells, then you can add a “Serial number” row as an alternative. Adding serial number row creates a data continuity, thus helping in fixing the filter-related issue.

Method 4: Unhide Hidden Rows and Columns

Hidden rows or columns in worksheets can also affect the filter functionality. You can check and unhide rows/columns to troubleshoot the issue. Here is how to do so:

• In the affected Excel file, go to Home.
• Click on Format > Hide & Unhide.

• Click Unhide Rows or Unhide Columns (as required).

Method 5: Unmerge Cells

You can experience the filter in Excel is not working issue if you are using the filter to extract data from merged cells. Ensure to unmerge the “merged cells” before applying a filter in Excel. Follow the below steps to unmerge the merged cells in Excel:

• Navigate to the Home option.
• In the toolbar, select the Merge & Center option.
• Click Unmerge Cells.

Method 6: Repair the Workbook

Sometimes, the Filter Not Working in Excel issue can occur due to inconsistencies in file structure. If these issues occurred due to corruption in the worksheet, you can repair it using the Open and Repair tool. It is an in-built tool in Excel that is used to repair corrupted Excel files. Here are the steps to use this tool:

• In the Excel application, navigate to the File option.
• Click Open and then click Browse to choose the Excel file.
• In the Open dialog box, click the problematic Excel file.
• Click the arrow next to the Open option and select Open and Repair.
• Click Repair to recover as much data as possible.
• The application prompts a message after the repair process is complete. Click Close.

In most cases, the Open and Repair tool can easily fix corruption issues in the Excel file. However, for any reason, if the open and repair tool doesn’t work you can consider repairing the file using a professional Excel Repair tool. Stellar Repair for Excel is one such advanced and secure tool to repair Excel files. With this tool’s powerful scanning capabilities, you can repair highly corrupted Excel files and recover all their objects with complete integrity. The tool is compatible with all Windows editions, including the latest Windows 11.

Closure

Several reasons are associated with the filter not working issue in Excel. The filter option may not work as expected if you have not selected the complete and correct range of data or for many other reasons. You can follow the troubleshooting methods discussed above to fix the issue. If the filter fails to work due to corruption in the workbook, then try Stellar Repair for Excel . It is an advanced tool that can even repair severely damaged files. It also helps to recover all the data from corrupted files without changing the original formatting. You can check the tool’s functionality by downloading its demo version. It allows you to preview all the repairable objects in the corrupted Excel file.

How to repair corrupt Excel file

Stellar Repair for Excel is an excellent tool to repair corrupt or damaged MS Excel files. Mentioned below are the steps to perform Excel repair with this tool:

• Download & Run the Stellar Repair for Excel.

• A dialog box appears on your screen, click ‘OK’ to proceed.

• To select your corrupt .XLS or .XLSX file, click ‘Browse’ button. However, if you do not know the location of your .XLS or .XLSX file, the software provides you the option ‘Search’ to search for your corrupt Excel files.

• Select the checkboxes against the files that you want to repair and click ‘Repair’. This starts the scanning process.

• The list of all the files that the software has scanned is displayed in the tree-view in the left pane. Click on a file from this tree-view to see its preview in the middle pane. From this list, you can select the file that you want to recover.

• You can either select the ‘Default location of file’ or ‘Select New Folder’ in the ‘Save Document’ dialog box to save the repaired files.

Stellar Repair for Excel Stellar Repair for Excel is the best choice for repairing corrupt or damaged Excel (.XLS/.XLSX) files. This Excel recovery software restores everything from corrupt file to a new blank Excel file.

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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.

Click here


• 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.