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What is the .XI File Extension?

.XI File Extension Description:

The file extension XI is used for instrument files used by the Fast Tracker 2 program. An instrument file contains samples of certain instruments. Files with the .xi file extension contain patterns to recognize how and when the samples are to be played.

Tracker programs use instrument files. Tracker programs are data music sequencers that allow its users to lie out sound samples across channels. One complete song has several small patterns, which are chained together in a master list. There are several elements common to tracker programs:

1. Notes are used to assign the frequency in which a sample is played.

2. Samples are small sound files of a voice, instrument or dialect. The program to create music tracks uses these.

3. Effects are special functions assigned to a note. Effects Common tracker effects are volume, portamento (slide between two or more pitches), vibrato (regular and pulsating change in pitch), retrigger (repeating samples in a number of times within a timeframe) and arpeggio (set of notes in a chord that are played one after another).

4. Tracks or channels are used to play and assign samples and notes to be played at the same time.

5. Patterns are used to dictate how the samples are played. These files look like a virtual music sheet where the user can compose the musical piece/score. Songs created by the tracker program come with different types of patterns.

6. Orders or pattern lists describe when the patterns are played. These are used so that patterns do not need to be repeated if they have to be used again.

The Fast Tracker 2 program is one commonly used tracker. Its easy navigation interface includes the pattern editor in the lower half while the instrument selectors are located on the upper half.

The Fast Tracker 2 support different types of file formats. One type of format that can be used by the program uses the file extension XI. The XI file extension comes from the term Extended Instrument. Files with file extension XI contain specific samples, which store the sound of instruments such as the piano or guitar. These files are by the program to create music tracks. A file using the file extension XI contains a particular pattern for the instrument to be played.

Another program that uses the file extension XI is the Scream Tracker. It is considered one of the biggest rivals of Fast Tracker 2. It is a versatile digital sequencer created by Same Tammilehto (Future Crew). This program also uses files with the file extension XI to store instrument files.

Author: Starbreeze Studios (,Fast Tracker 2),, Sami Tammilehto (,Scream Tracker),
Author URL:,FastTracker2),,
Related Applications: Fast Tracker 2, Scream Tracker
Common Path: N/A


Run a Free Scan to check for XI related errors & to optimize PC performance.

Do you have errors with .XI files?

The Reason for .XI files Errors:

.XI files errors are potential serious Windows registry errors and are often caused by a corrupted registry that needs to be repaired at once to avoid further failure in other software and/or devices. Experiencing these errors puts your computer in danger for fatal crashes, blue screen errors and even system device failure.

What are the Symptoms of .XI files Errors?

Common symptoms with .XI files errors include slower pc performance, long program start up speed, problems opening files, excessive breaks in software procedures, programs closes without showing an error message, input freezes and applications lock up.

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