What is the 3TH file format?
A file with the .3TH extension is a file known as Microsoft 3D Movie Maker Thumbnail Data. It belongs to the Misc Files category. This format is associated with Microsoft Corporation.
The reliable way to open a .3TH file is with software that recognises this exact format, rather than guessing from the file name. If you are not sure what created a file, our file identifier can read its first bytes and name the real format, even when the file has been renamed.
We are still gathering the list of programs that open .3TH files. A fully verified, hand-written description of this format is being prepared; until then, the details on this page are drawn directly from our database.
Format details
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