Hi - I'm trying to open a PTX file - it's my deposition for my divorce proceedings - my trial is next Monday! I can't figure this out!! Can anyone help! Thanks much in advance! My soon to be hopefully ex would probably flip you the bird! Haha!
According to https://fileinfo.com/extension/ptx this may be an audio file but also a file used for court transcripts, which sounds promising. Scroll down on the page to see suggested software.