To fix the “Excel file format and extension don’t match” error, first check if the file extension matches its format. Try renaming the file with the correct extension (e.g., .xlsx for Excel ...

The "Errors were detected while saving" message in Microsoft Excel appears when the application fails to save your workbook ...

Excel is uploading your most recent changes. If you’d rather not wait you can click Cancel to close the file and we’ll upload next time you open it. The Refresh Recommend is usually a sign ...

File-security limits can curtail your ability to open or save Microsoft Excel files. Getty Malware can exploit your computer and your private information, but only if it manages to install itself.