File Upload - Blocking file with mismatched extension - Behavior

Certified Associate Developer

Hello all!
We are on 21.3 Cloud.

We recently enabled the File Upload configuration (From Admin console) - "Block any file with an extension that does not match the underlying type".

Post this change, a set of users started noticing a behavior where when they attach an RTF file, above configuration gets triggered. The RTF file they are trying to upload is generated by an application and the property of the file looks alright. Has anyone experienced such behavior and if so how to get around that?

Thanks so much!

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  • I'd suggest you open a support case directly with Appian for this.  Take one of the RTF files that you can confirm triggers this behavior and attach it to your support ticket for them to analyze.

    BTW, did you open one of the affected files in a text / hex editor and verify that its metadata seems to match the ".rtf" file type?  Much of the file will look like gibberish when opened as text but usually there's a few snippets of human-readable info at or near the top which MIGHT give a hint as to what the underlying file type is supposed to be.

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  • I'd suggest you open a support case directly with Appian for this.  Take one of the RTF files that you can confirm triggers this behavior and attach it to your support ticket for them to analyze.

    BTW, did you open one of the affected files in a text / hex editor and verify that its metadata seems to match the ".rtf" file type?  Much of the file will look like gibberish when opened as text but usually there's a few snippets of human-readable info at or near the top which MIGHT give a hint as to what the underlying file type is supposed to be.

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