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Format

Capture One Session File

Summary

Name
Capture One Session File
Identifiers
PUID: fmt/1857
Format type
Text (Mark-up)
Description
COS files are XML CaptureOne Session files which contain metadata for each image within a CaptureOne session. Capture One is a software for RAW photo editing geared for photography.
Note
https://www.captureone.com/blog/eip-file-format-enhanced-image-package https://support.captureone.com/hc/en-us/articles/360002478617-Enhanced-Image-Package-EIP-overview https://support.captureone.com/hc/en-us/articles/360002544898-Metadata-in-XMP-sidecar-files http://fileformats.archiveteam.org/wiki/Enhanced_Image_Package
File extensions
cos
Source
Brigham Young University / Brigham Young University
Developed by
Capture One
Supported by
Capture One

Relationships

Has priority over

Internal signatures

Capture One Session File

Note
BOF XML header. Then BOF tags specific to Capture One software '<IMG>' gap between {0-256} then '<E K=' either 0x22 or 0x27 followed by 'Author'.

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
3C3F786D6C2076657273696F6E3D(22|27)312E30(22|27)
Endianness
None
Min Frag Length
Absolute from BOF
Offset
22
Max offset
0
Byte Sequence
3C494D473E{0-256}3C45204B3D(22|27)417574686F72(22|27)
Endianness
None

Changelog

  • Added in V112

    Release date
    10 May 2023

    Capture One Session File: Signature researched and samples provided by Brigham Young University.

    Capture One Session File: Full entry added. Submitted by Brigham Young University.