There are 2 file types use the .TPI file extension:
1. EDIUS Plugin File
Plugin file used by EDIUS, a video editing program; contains a plugin, which adds video editing functionality; commonly created to importing new file formats or apply video color adjustments, lighting effects, motion blurs, and other visual effects.
Updated: March 7, 2010
2. TrueVision Bitmap Image
Raster image created in the Targa file format, which was originally developed for TARGA and VISTA graphics cards; contains a bitmap image stored as a grid of pixels; supports a maximum of 24 bits per pixel with an 8-bit alpha channel.
Updated: September 30, 2009