On the file menu, click info Select protect presentation, point to restrict access, and then select restricted access. You can easily lock or unlock excel files on your mac.
One of the options below can help you If you have a different browser, find the settings or app menu (usually in the upper corner of the browser) and find downloads Go to file > info
Microsoft 365 includes a file protection feature that allows authors to mark a file as final This locks the file, preventing any further editing You can easily turn off this feature in the microsoft 365 applications However, you can’t turn it off from your mobile device.
On the format menu, click conditional formatting In the conditional formatting dialog box, click add Under if this condition is true, set the condition that you want. In the editing restrictions area, select the allow only this type of editing in the document check box
Open the workbook you want to protect Click the file menu, and then click passwords
