Why can't I open an XLSX file?

Question

When the Excel file is corrupted, not compatible with the Excel version, infected by the virus, or received by email, these are the common causes of the "Excel cannot open the file because the file format or file extension is not valid" problem. If any of these problems appear, you can't open your XLSX file.

How do I open an XLSX file?

You can open XLSX files with Microsoft Excel in Windows and macOS. Excel is the best option for opening XLSX files because it fully supports the formatting of Excel spreadsheets, which includes images, graphs, and spacing of data fields. Excel is also available for Android and iOS devices.

How do you fix Excel Cannot open the file XLSX because the file format?

Re: Excel cannot be open the file 'filename.1Right-click the Excel file that cannot be opened and select Properties.2After the file's Properties dialog opens, select the Security tab, and then click the Edit button.Excel cannot be open the file 'filename.xlsx' because the file format ...

Why can't I open XLSX files on Mac?

If you can't open a Numbers spreadsheet, make sure that you have the latest version of Numbers from the Mac App Store. If a spreadsheet is dimmed and can't be selected, it means the spreadsheet can't be opened by Numbers. You can open Microsoft Excel spreadsheets (files with a . xls or .

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