File Screen to block all files but exclude one extension

Question

File Screen to block all files but exclude one extension

Arkady Karasin 21

Hi All,
I need to create File Screening on Windows Server 2019 to block all kinds of extensions even unknown, but allow *.doc.
Is it possible?
Thanks

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Answer 1

Leon Laude 86,026

HI @Arkady Karasin ,

Yes it should be possible, although the File Screen does not have all known extensions but you can select and block all file groups, and then create an exception for .doc files.

Create a File Screen Exception
https://learn.microsoft.com/en-us/windows-server/storage/fsrm/create-file-screen-exception

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(If the reply was helpful please don't forget to upvote or accept as answer, thank you)

Best regards,
Leon

Muhammad Akhtar 0 Reputation points

2025-06-04T05:20:15.42+00:00

I tried to put " . *" and then added to exclude *.docx & .XLSX, I was able to copy and paste the above 2 file extensions. But if I create a new XLSX file, it does not save. It gives an error. I think more research and testing have to be done.

Answer 2

Arkady Karasin 21

Thank you @Leon Laude ,
I hoped to get different answer. Looking like I should add a lot of extensions that I need to block.

Leon Laude 86,026 Reputation points

2020-10-22T10:37:59.467+00:00

If you select all file groups then it should cover many file extensions, but otherwise you’ll need to manually add the file extensions.

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File Screen to block all files but exclude one extension

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