.s3i extension

File Type Scream Tracker 3 Instrument
Rank ★ ★ ☆  Average
Description

Instrument format used by Scream Tracker, a popular audio tracker developed for DOS.
Open With
Windows

Scream Tracker 3 and later

OpenMPT
Updated December 6, 2006
Information from the PC File Extensions Reference
http://pc.net/extensions/file/s3i