You need program called Lingoes
Lingoes is an easy and intuitive dictionary and text translation software, It offers lookup dictionaries, full text translation, capture word on screen, translate...
PTX is the extension for files created by E-Transcript. You can download the viewer of these files at http:/www.reallegal.com/softwareDownloadETranscriptViewer.asp
It is also used by Pentax...
It depends what it is, it could be any one of the following files: - Alpha Five Data Dictionary File - Alphacam Laser VB Macro File - Chief Architect Library File - Cubase or VST Backup Song File -...
My celphone records video in this format.
The related link below (at www.fileinfo.com) has good information about this. Since I use Windows, I chose to download the free VideoLAN VLC media player...