What file are you copying from the Mac? You need the tax data file. The Windows program uses the same files. Copy the 2023 file to the Windows hard drive. Put it in Documents and to a Turbo Tax subfolder. You may have to make a Turbo Tax folder. The Mac normally doesn’t show the .tax2023 at the end.
How to find tax files on Mac
https://ttlc.intuit.com/community/tax-data-file/help/find-your-tax-data-file-in-mac/00/26206
