3TH Converter

Extract text from 3D Movie Maker thumbnails (3TH)


Drop or upload your .3TH file
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How to extract text from your 3TH file

  1. Click the "Select File" button above, and choose your 3TH file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert 3TH to another file type

To convert 3TH thumbnails to another format, you need 3D Movie Maker or other 3D software.

Convert a file to 3TH

To convert other file formats to the "3D Animation Asset File" file type, you need software like 3D Movie Maker or a similar tool.


About 3TH files

A .3TH file is a proprietary 3D animation asset container primarily used by Microsoft 3D Movie Maker, and occasionally associated with The Movies or tools from The Games Factory. These files store the building blocks for digital movie scenes, including 3D models, textures, audio clips, and low-resolution thumbnail preview images. The format was explicitly designed to be read by the Microsoft 3D Movie Maker engine during project assembly. Originally released in 1995, the .3TH format is heavily outdated and entirely proprietary. The files cannot be opened by standard modern 3D viewers, Windows Photos, or modern web browsers. The closed binary structure locks your assets inside a specific, decades-old software ecosystem. Users typically need to extract the visual contents rather than the whole 3D scene. Converting .3TH files to standard image formats like PNG or JPG is ideal for viewing the embedded thumbnails. Advanced modders may attempt to extract the geometry to OBJ or textures to BMP. Be aware that engine-specific metadata and complex animations are always lost during extraction. Because it is a proprietary legacy relic, standard online converters fail to parse the binary structure correctly. Often, only the original software or dedicated community extraction tools can properly read the data. However, convert.guru can still identify the file format, inspect the file, and show text or internal content. If our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible.

Convert.Guru analyzes your 3TH file, detects the exact format, and lets you read the text inside.

Users also converted 3MM, 3CN and WLMP files.


FAQ

If you want to convert 3TH file to [% faq_exts_to %], you can use 3D Movie Maker or similar software from the "3D Animation Asset Storage" category. In the File menu, look for Save As… or Export….

To convert [% faq_exts_from %] files to 3TH, try 3D Movie Maker or another comparable tool in the "3D Animation Asset Storage" category.



The 3TH Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our 3TH converter.