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sharepoint-onlineonedrive

SPO restrict few selected file extension

Came across the article that there is no restriction in any file extension in the SPO https://support.microsoft.com/en-us/office/types-of-files-that-cannot-be-added-to-a-list-or-library-30be234d-e551-4c2a-8de8-f8546ffbf5b3

No restrictions to types of files added to SharePoint

but we can restrict it using Sync Client https://learn.microsoft.com/en-us/onedrive/block-file-types

Is there any alternative way to control upload to the OneDrive Site when user clicks on the upload option.

Solution

  • Unfortunately, there is no OOB ways to restrict specific file extensions in SharePoint Online. You can create a workflow that start automatically when an item is created. and use "delete List Item" action when the file type is equal to relevant type.

    Here is a similar post for your reference:

    https://sharepoint.stackexchange.com/questions/244847/how-to-restrict-files-uploaded-to-sharepoint-online