The problem is that you exported in the mac format using the `.tic` file extension, so your computer thinks it's in the TIC format while it's not.
I think you should be able to read it with a mac if you remove the `.tic` file extension (not sure if an other file extension must be used on mac).
I guess you overwrote your saved TIC file while exporting to mac. Pay attention to distinguish your TIC file and the exported files.
I hope it's clear, tell me if not.