There are 2 file types use the .XT file extension:
1. Xdebug Trace File
Output file generated by Xdebug, an Apache Web server plugin used for tracing PHP execution; logs the output of the PHP code line by line; used for checking and debugging functions written in PHP.
|Xdebug Debug client|
Updated: April 19, 2008
2. Fastracker 2 Track
Single audio track created and saved with Fasttracker; multiple tracks can be put together to create a full song, or .XM module.
|Starbreeze Studios Fasttracker||Free|
Updated: March 5, 2012