Tpi extension is associated with Visual Test Shell file. You can try to open tpi files with Visual Test software.
Visual Test stands for open coded system. This format developed for controlling of automation system. You have chance to open tpi files with Visual Test software. If you need to get detailed information, please take a look to following web page vts.sourceforge.net
What to use tpi
which page related to tpi file
tpi Related Searches
You can check related links about tpi fileextension.