A vendor has 2019 and I have 2020. I need to save my file as a part file but in 2019. It cannot be a step file.
download and install 2019, and remodel your parts.
"It cannot be a step file. "
How about parasolid? Otherwise, no, what you're asking for can't be done. See Why am I getting a "Future Version" error when I try to open a File? for more information
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