How to open .STX file extension?

If you cannot open a new file that has been saved in the .STX format you need to download the appropriate software. The manufacturer of .STX files is Pinnacle; .STX files belong to the Video Files category. After downloading the application from the list available on our website just run an unknown file, and as the default set the newly installed application supporting the .STX files. Activities performed in the order described should solve the problems with all the files in the .STX format.