ERDAS Imagine IMG

Unknown

image

The ERDAS HFA format defines a heirachichal data structure used by many formats primarily associated with with the ERDAS Imagine software package for processing geospatial imagery. Other formats use this structure also, notably ArcGIS 'Reduced resolution datasets' and their auxilliary files. It may be possible to distinguish between distinct subsets of HFA with further research. Please contact the PRONOM team if you can assist with this.

Identify it

Extensions	`.img.ige.ovr.rrd.aux.aoi.cff.fft.gcc.sig.sml`
Signatures	`454846415f4845414445525f54414700` at byte 0 (Reduced Resolution Dataset)
PRONOM	`fmt/1215`
Wikidata	`Q28206049`
Library of Congress	`fdd000420`

Not sure your file is this? Identify it from its first bytes, in your browser.

Open it

ENVIreads and writes · proprietary license
Global Mapperreads
GMSreads
Image Alchemyreads

Convert it

No conversion recorded. One of the tools above may export it; search for a chain.

Sources

From Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.

Improve this record JSON