Compressed (zip) file not recognized

I recently compressed 2 pdf's using my iMac's 'Compress files' feature and attached the resulting zip file to an email sent to 4 people. One was using a Mac, one a Chromebook, and two are using Windows.

The Mac user had no problem but the other 3 could not open the file, which was about 5MB in size. Any ideas why this happened?

iMac 27″, macOS 10.14

Posted on Oct 6, 2021 1:35 PM

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1 reply

ku4hx

Level 7

23,694 points

Oct 11, 2021 9:22 AM in response to Frank Miller2

Regardless of system, each recipient has to have an app that opens your type of compression scheme. For that reason, I always use 7Zip as its free and available for pretty much any platform.

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Compressed (zip) file not recognized

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