What is .PTX file extension?
Session file format introduced with Pro Tools 10 digital audio workstation (DAW) software; supports audio, MIDI, and software instrument tracks, as well as effects, mixing settings, and other edits; stores references to audio files but not the audio files themselves.
NOTE: Pro Tools 7-9 use the .PTF format and cannot open PTX files. But, you can convert PTX files to the PTF format with Pro Tools 10 and later in the Save Session Copy dialog. Note that some newer Pro Tools 10 features will be lost if you save to the older format, such as clip gain settings.
You can see a list of software programs here on easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.