You can have Excel make a spreadsheet in read only format for others, so that people can read its contents but not edit them, or you can enforce other content restrictions.

Disabling Read-Only Marked as Final Files in Excel When an Excel worksheet is Marked as Final, it is not meant to be edited, which means that commands, typing and proofing marks are all disabled.

Sending Excel files containing crucial financial and business data has risks. To add a layer of protection, you should learn to password protect an Excel file.