Export FTB file from MacOS Catalina to PC
FTM2019 for the Mac and FTM2019 for a Windows PC use the SAME file format.
You can open a FTM2019 FILE from a Mac with a Windows PC with FTM2019. No Export involved.
(I am guessing that when you said FTB, you really meant FTMB (a Back Up). So, on the Windows PC, you would do a File, RESTORE.
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