TRIF Tiled Raster Interchange Format bitmap file
File type: Bitmap image file
A .trif file is a bitmap image in the Tiled Raster Interchange Format, designed for exchanging tiled raster data.
File type category:
Bitmap image file
Date updated: September 27, 2026
The TRIF file extension is related to Tiled Raster Interchange Format. TRIF was developed by the Tiling Task Group at the National Institute for the interchange of tiled raster data.
TRIF is very similar to the CALS Type II raster format and shares many of the same standards documents. It is a specialized, legacy raster format rather than a common modern image format.
Open a TRIF file with an imaging or raster-processing application that specifically supports the Tiled Raster Interchange Format. Support is uncommon, so a general-purpose image viewer may not recognize it.
If the file does not open, use the application or workflow that created it, or ask the file provider for an export to a more widely supported bitmap format.
To convert a TRIF file, open it in a compatible imaging application and export it to a standard bitmap format supported by that application.
Because TRIF is uncommon, conversion may require the original imaging workflow or other software with TRIF support.
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