XT

xt icon

FastTracker music track file

File type: Audio and sound file

Files with the xt file extension contain music tracks for FastTracker, a tracker music composition program.

The format stores a track as editable musical data rather than as a conventional audio recording.

Found 2 different file type records with the same xt filename suffix.

What is xt file?

File type category:
Audio and sound file

Date updated: November 4, 2026

The xt file extension is associated with FastTracker and its music tracks.

FastTracker was one of the most widely used trackers in the world. It was created by Fredrik "Mr. H" Huss and Magnus "Vogue" Högdahl, two members of the PC demo group Triton, now commonly known as Starbreeze Studios. The group released its own tracker after breaking into the scene in 1992 and winning several demo competitions.

FastTracker was designed for MS-DOS and is now legacy software. Its source code was written in Pascal using Borland Pascal 7 and TASM, so the xt file format is mainly encountered in older tracker music collections.

How to open xt file?

Open the file with the version of FastTracker for which it was created. Because FastTracker is legacy MS-DOS software, current systems may require a DOS emulator such as DOSBox.

General-purpose audio players do not normally open this format. If FastTracker is unavailable, a modern tracker may be able to import the file, but support for this legacy format is not universal.

How to convert xt file?

Open the xt file in FastTracker or a compatible tracker and save or export it in a format supported by that program. This may preserve the composition as an editable tracker module.

To create an audio file, play the track and record the output to a format such as WAV. Unsupported files may need to be opened with the original FastTracker software.

Xdebug trace data

File type category:
Various data file

Date updated: May 11, 2018

The xt file extension is used for an output file generated by the Xdebug, a plugin for PHP, which enables programmers to develop, check and debug PHP script files, developed by Derick Rethans.

How to open xt file?

Probably can be viewed in any text editor.

Suggested software to open xt file:

Associated software actions with the xt file

Software apps that create xt files:

Microsoft Windows

Software applications that handle other tasks involving xt files:

Microsoft Windows

Related file extensions