Files Created before 97Plus

Hi...

Thanks in advance for any insight here.  I have some .PRT files given to me from engineers in Korea for a project I am working on.  Problem is, I cannot get the files open.  I do not need to edit or any modifying.  I just need to be able to open and print these files.  I read the eDrawings does support the file type but now seeing that it won't open the older file types.  Can anyone provide any help in getting these files open, just to view?

Thank you,

SolidworksImport export