Just because you can doesn’t mean you should

In SharePoint, OneDrive and Microsoft Teams, you can upload all kinds of file types imaginable, but even if you can, it’s not necessarily a good idea.

I have, on several occasions, seen zip files, database files, installation files (ISO), executable files such as exe files, e-mail messages, heavy drawings and graphics uploaded. Often this has happened in connection with decommissioning your Windows file server and quickly needing a new place to store your information. If you don’t know where different file types should be stored, it is quite natural that this happens.