Get your taxes done using TurboTax

The x86 program sounds like the Windows program.  You needed to download the Mac version.   Did you buy the wrong version?  Call support and see if you can get the Mac download.

How to contact Turbo Tax
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-contact-turbotax/00/26991

What is the Turbo Tax phone number
https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632