Graphic Workshop Thumbnail

File Format
Name	Graphic Workshop Thumbnail
Ontology	Electronic File Formats Graphics Graphic Workshop Thumbnail
Extension(s)	.thn
PRONOM	fmt/336
Released	1992

Graphic Workshop for Windows Thumbnail (.thn) is a thumbnail image format associated with the Graphic Workshop line of image management software from Alchemy Mindworks. It was probably first used by Graphic Workshop for Windows v1.1 (for Windows 3.x).

Images are 96×96 pixels, and use a 256-color palette.

Identification

Know files are exactly 9480 bytes in size, and begin with ASCII "THNL". At offset 4 are the bytes 0x00 0x01 (in files using the original palette), or 0x01 0x01 (newer palette / RGB332).

Software

• Graphic Workshop for Windows: v1.1a · v1.1u.

Sample files

• The files in the Software section include a few THN files.
• Random examples found on the web: [1], [2]

Links

• Graphic Workshop Professional website