Capture One Settings File

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markup

File created by created by Capture One software which performs photo editing, raw image file processing of many different raw file types, and image cataloguing. Capture One does not make changes to the original RAW file, instead storing them as adjustments within these component files: Cos files contain the adjustments made to images.

Identify it

Extensions	`.cos`
Signatures	`3c3f786d6c2076657273696f6e3d` at byte 0 (Capture One Settings File)
PRONOM	`fmt/1725`
Wikidata	`Q113534197`

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Open it

Capture Onereads and writes · proprietary license

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Sources

PRONOM fmt/1725
Wikidata Q113534197

From PRONOM, Wikidata. Updated 2026-10-20.

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