Add a password and expiry date to an Excel sheet link If you use Microsoft's OneDrive cloud platform to save and share Excel files, you can password-protect and set an expiry date for a shared link.

Microsoft Excel protection offers several types of passwords including Password to open a document, Password to modify a document, Password to unprotect the worksheet, Password to protect workbook ...

You can add or remove a password from your Excel spreadsheets through the File tab. You'll do it slightly differently on a Mac and PC.