Considering CATPART and PRT formats are used to store technical drawings of a part of a product, it should be quite possible to somehow convert it from one to another, i.e. perform catpart to prt conversion.
The tricky part would be to find a program that exports to PRT, as this file type was used by many programs and it is likely at least some of them had their own unique format. So it would probably be best to use some universal exchange formats.Open CATPART file Open PRT file
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