Excel time lock

[Unlucky2]

Hello Guys,

is it possible to make something like excel time lock ? 

Example:

I create excel file at 20 each month, and I would like to have it locked for editing (maybe auto password setup or something) after exactly 14 days or after specific date like 04 next month.

[#2]

Hello, if the file is being stored on a SharePoint site, you might be able to set up a MS Flow that sets the permission of the file so that others cannot edit it. I'm not sure of any way this can be accomplished in Excel alone.

Here's a link to a Power Automate Community post that may help: https://powerusers.microsoft.com/t5/Building-Flows/Locking-sharepoint-list-item-post-approval/td-p/3...