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Bug

Uploading a .7z file to a hosted feature layer in ArcGIS Online from Windows 11 fails and returns the error message "Attachment file type (<File_Name>.7z, application/x-compressed) is not allowed.".

ArcGIS Online
Bug ID Number BUG-000178573
SubmittedAugust 8, 2025
Last ModifiedOctober 8, 2025
Applies toArcGIS Online
Version foundJune 2025
Operating SystemWindows OS
Operating System Version11.0 64 bit
Version FixedPlanned Release Date: Q4 2025
StatusFixed

Additional Information

This issue is fixed and will be available with the next ArcGIS Online update.

Workaround

Upload the .7z file from a machine running Windows 10 or macOS.

Steps to Reproduce

Bug ID: BUG-000178573

Software:

  • ArcGIS Online

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