FILE EXCEL BỊ LỖI FILE FORMAT NOT VALID

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Did you get an error message of "Excel cannot open the file **.xlsx because the file format or file extension is not valid" while trying to lớn open a file?Quiông xã fixes and advanced solutions are available here lớn fix this problem & access your document.Bạn đã xem: File excel bị lỗi tệp tin format not valid


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Many users may encounter an error when trying to lớn open or edit an Excel file in Office 2003, 2007, 2010, 2013, năm nhâm thìn, và 2019. The error message displays, "Excel cannot open the file because the extension is not valid". This article will provide you with the effective sầu solutions to lớn resolve Excel cannot open the file error, & get your MS Excel data baông chồng right here now.

Workable SolutionsStep-by-step Troubleshooting
Fix 1. Change File ExtensionOpen Microsoft Excel và go to lớn "File" > clichồng Export and choose Change File Type...

Bạn đang xem: File excel bị lỗi file format not valid

Full steps
Fix 2. mở cửa in Safe ModePress Windows+R key, type: excel.exe pháo /safe và clichồng "OK" > Save sầu the tệp tin as .xlsx...Full steps
Fix 3. Use Open và RepairStart Office Excel > clichồng File & Open > select the inaccessible Excel tệp tin...Full steps
Fix 4. loto09.com File Repair ToolUse loto09.com MS Office document repair tool to lớn fix corrupted or damaged Excel files when Excel cannot ...Full steps

Error "Excel Cannot xuất hiện the File Because the File Format or File Extinction Is Not Valid"


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Sometimes, when you try khổng lồ open or edit an Excel file on Microsoft Office 2003, 2007, 2010, 2013 or 2016, you may encounter the following problem:

"Excel cannot open the file "filename.xlsx" because the file format or file extension is not valid. Verify that the file has not been corrupted và that the tệp tin extension matches the format of the file."

It usually indicates the tệp tin is not compatible with the Excel version or the file has come corrupt or damaged. In this article, we will show you all the possible solutions, and you can try them respectively until fixing the issue. 

4 Effective Fixes for Excel Cannot mở cửa the File Because the Extension Is Not Valid

There are four useful solutions in total to solve sầu the Excel cannot open the file issue. Besides, two methods are provided to recover Excel when the file format or file extension is not valid. 

Fix 1. Change the Excel File Extension

Many times, this error occurs due khổng lồ the incompatible file extension of the Excel file. MS Excel saves Excel workbooks as XLSX or XLS tệp tin by default. Excel 2003 và earlier version save sầu files as XLS, whereas Excel 2007 và later versions lượt thích the Excel 2010, Excel 2013, Excel năm nhâm thìn and 2019 save files in XLSX file format. You can change the default file format for the corresponding Excel version khổng lồ any other file format supported by MS Excel.

Step 1. xuất hiện Microsoft Excel và go khổng lồ the "File" tab.

Step 2. Cliông chồng "Export" and choose "Change File Type".


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Step 3. Change the file extension to any other tệp tin format that MS Excel supports and cliông chồng "Save As". Then, Cheông chồng if Excel can open your tệp tin or not.

Fix 2. Open the Excel File in Safe Mode và Disable Add-ins

If Excel cannot open the file, try running Excel in safe mode khổng lồ see if it can be accessed successfully. This method also checks if there are any errors in MS Excel.

Step 1. Press Windows+R key, type excel.exe /safe, & clichồng "OK". Loading Excel without templates and add-ins allows you to see if the program works as it should or if it is corrupted.


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Step 2. If Excel opens normally, kiểm tra for any add-ins that are causing problems in Excel. Disable the add-ins và clichồng on the "OK" button.

Step 3. Restart Excel lớn kiểm tra if the problem is fixed. If not, move sầu on to the next approach.

Fix 3. mở cửa Excel File Using Open & Repair Feature

The "Open và Repair" is a built-in easy-to-handle MS Excel utility that allows you to correct the error Excel cannot open the tệp tin because the tệp tin format or tệp tin extension is not valid.

Step 1. Start Office Excel. On the File menu or the Microsoft Office button, click "Open".

Step 2. In the Open dialog box, click khổng lồ select the inaccessible Excel file.

Step 3. Cliông xã the down arrow on the mở cửa button, & then cliông xã "mở cửa and Repair". Microsoft Office will then start to lớn check the Excel document and repair problems or corruption it found. 


Fix 4. Use loto09.com File Repair Tool to lớn Fix Excel Cannot mở cửa the File

If Excel cannot open the file because the extension is not valid problem is caused by tệp tin corruption rather than tệp tin compatibility, you need a professional file repair program khổng lồ help you fix the problem. 

loto09.com Data Recovery Wizard is an all in one tool that can help recover deleted files & restore corrupt files easily and efficiently. It can help khổng lồ repair corrupted JPEG/JPG or recover damaged MP4 & MOV files on both Windows and Mac computers. 

This professional MS Office Excel tệp tin repair tool has the following salient features.

Now, tải về loto09.com MS Office document repair tool for không tính phí và follow the step-by-step guides below to lớn repair damaged Excel files with three steps.

Step 1. Select a location to lớn start finding corrupted Excel files

Launch loto09.com Data Recovery Wizard, and then scan the corrupted or damaged Excel files.


Step 2. Repair and recover corrupted Excel document

First, find the damaged files through the filter, file path, tìm kiếm, etc.


Tip: It supports single file kích cỡ recover unsaved Excel file? Try the two ways below. 

1. Restore Unsaved Excel Wordbook from Previous Versions

This method can only restore lost files khổng lồ a previous version. It means that you may thua trận some changes you may have sầu made to lớn the document.

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Step 1. Right-clichồng the inaccessible Excel document và choose "Properties".


Step 2. Open the "Previous Version" tab to lớn danh mục all the previously stored version of the Excel tệp tin.

Step 3. Choose the right version & cliông chồng "Restore" khổng lồ retrieve the document.


2. Restore Unsaved Excel File Using AutoRecover

This method only works when you have turned on the AutoSave sầu feature in Office Excel. And it"s also helpful for recovering unsaved Word document. 

Step 1. Open Office Excel và got khổng lồ the "File" tab > click "Info".

Step 2. Besides Manage Versions, you"ll see all autosaved versions of your file.


Step 3. mở cửa the file in Excel và cliông chồng "Restore". 


Step 4. Save sầu the file with another tệp tin name and mix the extension as .xlsx.

Worthy Tips to Prevent Excel File from Loss

There are many ways lớn prevent data loss. If you have lost important Excel files due to careless deletion, hard drive sầu formatting, or virut attaông chồng, you can use the data recovery tool to retrieve sầu lost data. There is another crucial point to avoid data loss, which is backing up your Excel file at any time. 

1. Recover Deleted or Lost Excel File with File Recovery Software

Except for restoring unsaved Excel caused by Excel crashes when saving or other reasons, many users need to lớn recover lost excel spreadsheets caused by accidental deletion, OS crash, hard drive sầu damaged/corrupted, or lost partition. On this occasion, you have sầu to resort khổng lồ a professional file recovery tool for help. And loto09.com tệp tin recovery software is worth lớn try. It allows you to recover deleted DOC/DOCX, XLS/XLSX, PPT/PPTX, PDF, CWK, HTML/HTM, INDD, EPS, etc. with a few clicks.

Give sầu it a try to get your lost Excel bachồng immediately:

Step 1. Specify a location.

Run loto09.com Data Recovery Software. Choose the drive sầu X: or a specific thư mục on Desktop or somewhere else where you lost the excel files, & then cliông chồng "Scan".


Step 2. Scan for data.

During the scan, you"ll see more và more data showing up very quickly in the "Deleted files" result. Wait for the scanning process finishes. To quickly find the Excel files from the scan results, cliông xã on the "Filter" on the top area and choose "Excel". Or, tìm kiếm .xls or .xlsx in the Search box. 


Step 3. PReviews and recover.

You can double click on the Excel file lớn previews its integrity. Finally, select the desired Excel files & cliông chồng "Recover".


2. Back Up Excel File Automatically 

If you need khổng lồ modify & change your worksheet frequently, turning on the AutoSave feature is also necessary. Or you can also copy & backup your tệp tin to another safe location manually in case of accidents.


Final Words

"Excel cannot open the file "(filename)" .xlsx because the file format for file extension is not valid" is a usual error that you can face while opening an Excel file. With the help of the above methods, this error can easily be resolved without data loss.

If Excel cannot open the tệp tin problem is due to tệp tin corruption, loto09.com tệp tin repair tool can help you fix & recover the Excel file with a few clicks in a short time. It is good at repairing photos, videos, documents, & other files on the hard drive sầu, SD card, memory thẻ, or any other storage medium. No matter they are lost or existed on your devices. It"s worth a shot.

Excel Cannot mở cửa the File Because the Extension Is Not Valid FAQs

The following four frequently asked questions are highly related to lớn Excel cannot open the file because the tệp tin format or tệp tin extension is not valid. If you also have sầu any of these problems, you can find the methods here.

How vì I fix file format or file extension is not valid?

You can try to fix Excel cannot open the tệp tin because the tệp tin format or tệp tin extension is not valid by changing the file extension:

Step 1. mở cửa your Excel tệp tin. On the taskbar, select "File". Then select "Options" > "Export" > "Change File Type".

Step 2. You can directly change the tệp tin extension depending on the version of Excel installed. Cliông chồng "Save As". Then, check if the error "Excel cannot open the file" is resolved or not.

How do I recover an Excel tệp tin format or file extension is not valid?

You can restore Excel tệp tin format, or tệp tin extension is not valid from previous versions.

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Select the damaged file. Right-cliông xã it and clichồng "Properties" > "Previous Version". A menu of previous versions will appear; you need lớn select the option you are interested in & clichồng "Restore" lớn recover. Previous versions come tệp tin File History or from restore points.

What does file extension not valid mean?

"Excel cannot open the file "(filename)" .xlsx because the file format for file extension is not valid" is a common error that many users may encounter while opening an. xlsx tệp tin, especially when opening a spreadsheet received through an email. The possible reasons for this issue might be:

The Excel file is corrupt or damaged.The Excel tệp tin is not compatible with the version of MS Excel you"re using.

Why can"t I open an XLSX file?

When the Excel tệp tin is corrupted, not compatible with the Excel version, infected by the virut, or received by gmail are the common cause of "Excel cannot open the tệp tin because the tệp tin format or tệp tin extension is not valid" problem. Any of these problems appear, you could not open an XLSX tệp tin.