6/24/2023 0 Comments Excel 2008 for mac will not open![]() Use Excel previous version to open the file You need to directly change the file extension depending on the version of Excel installed.Ĭheck if the error “Excel cannot open the file” is resolved. Then select Options -> Export -> Change File Type. Open Excel and, on the taskbar, select File. Therefore, all you need is to modify the file format and it will become available. But Excel since 2007 saves files in the XLSX format.Ī mismatch between file extension and Excel version may cause the error “Excel cannot open the file because the file format or file extension is not valid”. ![]() In all versions of Excel until 2007, documents were saved in the XLS format. If you still get an error message that Excel cannot open the file because the file format or file extension is not valid, there are some great methods to fix it! Method 1.Change the file extension! ![]()
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