User level: Level 1 (4 points)Zip files from my client are suddenly an "unknown" format but will decompress, usually. Sometimes it will take a couple of tries.
Posted on Oct 13, 2026 2:54 PM
User level: Level 10 (131,878 points)Oct 14, 2026 2:54 AM in response to CindyJohn1
I would inquire of the client what archive tool they are using to zip their files.
Consider obtaining the free UnArchiver app from the Mac App Store. It is a "can opener" for many different compressed archive formats, some of which Apple makes no provision for opening. See if it improves on the decompression for your client's zip files.
Originally posted at discussions.apple.com/thread/256375716