"Error 79" when opening zipfiles on Macs

[Debbie]

MacBook users are getting errors when trying to open my zipfiles.

The error message is "Error 79 - Inappropriate file type or format".

Windows has no problem opening them.

The screenshot shows the settings I'm using to create the zipfiles.

Are there better settings to use to ensure the zipfiles can be opened regardless of the users OS?

Thanks!

[Igor Pavlov]

ask MacBook users about program that they use to unpack zip files.
And try Deflate instead of Deflate64

[Debbie]

I believe that they're just using the in-built unzipping functionality. I'll try using "Deflate" instead and see how that goes.

Thanks for your help.