Graphics Workshop for Windows thumbnail
File type: Bitmap image file
A thn file extension is related to the Graphics Workshop for Windows thumbnail format.
Found 2 different file type records with the same thn filename suffix.
File type category:
Bitmap image file
Date updated: October 27, 2017
The thn file extension is associated with Graphics Workshop, an image management package for Microsoft Windows operating system, developed by Alchemy Mindworks.
The thm file contains thumbnail from the Graphics Workshop.
The thn files are used for internal purposes of Graphics Workshop.
Software apps that create thn files:
Microsoft Windows
Software applications that handle other tasks involving thn files:
Microsoft Windows
File type category:
Various data file
Date updated: September 27, 2026
GIF Construction Set Professional, developed by Alchemy Mindworks, is a Windows application for creating and editing animated GIF images. A THN file contains construction data used by the application while it builds an animation.
The file belongs to the working data for a GIF Construction Set project. It is intended to be read by GIF Construction Set Professional and is not a general-purpose image format.
THN files are associated with the Windows version of GIF Construction Set Professional. To use the data in another application, the project should generally be opened in GIF Construction Set and exported as a standard animated GIF or another format supported by that software.
Open the THN file in GIF Construction Set Professional on Microsoft Windows.
Other image viewers and animation editors generally cannot open THN files directly because they contain GIF Construction Set construction data rather than a finished GIF image.
Open the file in GIF Construction Set Professional and export the resulting animation as a GIF file using the application's normal output commands.
The THN file itself is not normally converted directly.
Software applications that handle other tasks involving thn files:
Microsoft Windows
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