Click the "Select File" button above, and choose your TRI file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert TRI to another file type
To convert your TRI file to another format, you need TRIOS Software or other Data software.
Convert a file to TRI
To convert other file formats to the "Scientific Analysis & 3D" file type, you need software like TRIOS Software or a similar tool.
About TRI files
The .tri extension represents two distinct but significant formats, creating frequent confusion for users.
1. Thermal Analysis Data (Primary)
Most commonly (approx. 60%), a .tri file is a proprietary data container generated by TA Instruments thermal analyzers (like DSC, TGA, or Rheometers) and managed by TRIOS Software. These files store raw experimental results - such as heat flow, weight changes, or stress data - in a binary format. - The Challenge: These files are locked to the TRIOS ecosystem. You cannot double-click to open them in Microsoft Excel or standard text editors. Sharing raw data with colleagues who lack the software is impossible. - The Solution: To make this data usable, users must export it from within TRIOS to CSV (for spreadsheet analysis), TXT, or PDF (for finalized reports).
2. 3D Morph & Face Data (Secondary)
The second most common use is in 3D modeling and game modding, specifically associated with FaceGen and Bethesda games (Skyrim/Fallout). Here, the .tri file contains morph targets - specifically vertex deltas that define facial expressions (like smiling or blinking) or body shape adjustments. - The Challenge: Unlike standard OBJ or STL files, these .tri files do not contain the full mesh geometry. They only store the difference (offsets) applied to a base mesh (usually a NIF file). Consequently, they cannot be opened directly by standard 3D viewers or slicers. - The Solution: To edit or convert these, you need specialized tools like BodySlide and Outfit Studio or Blender with the specific Import-Export TRI addon. Users typically convert these to OBJ to bake the morphs into a static mesh for 3D printing or rendering.
Convert.Guru analyzes your TRI file, detects the exact format, and lets you read the text inside.
If you want to convert TRI file to OBJ, FBX, DAE, 3DS, MAX, BLEND, MA, MB, C4D, STL, PLY or WRL, you can use TRIOS Software or similar software from the "Thermal Analysis Data" category. In the File menu, look for Save As… or Export….
To convert DWG, DAE, X3D, IGES, WRL, JT, SKP, 3DS, 3DM, OBJ, STEP or FBX files to TRI, try TRIOS Software or another comparable tool in the "Thermal Analysis Data" category.
The TRI 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 TRI converter.