Extract text from TerraIndex files (TI)
To convert TI files to another format, you need TerraIndex or other Data software.
To convert other file formats to the "Geotechnical Investigation" file type, you need software like TerraIndex or a similar tool.
The .TI extension represents a collision of distinct file formats, most notably the Geotechnical Soil Investigation Data file used by TerraIndex and a truncated variation of the Tagged Image File Format (TIFF).
For engineers and geologists, a .TI file is a proprietary container (often ZIP-compressed XML) holding borehole logs, soil sample analysis, and project metadata. A major limitation is accessibility: these files are designed for the TerraIndex ecosystem. Without a licensed copy of the software, the data is effectively locked away, making it difficult to share insights with stakeholders who rely on standard spreadsheets. For these users, the goal is extracting the structured data into CSV or XLSX for analysis in Microsoft Excel or archiving as PDF reports.
Alternatively, in the graphics world, a .TI file is often just a TIF or TIFF image that has been renamed or truncated by legacy systems (like older DOS or Unix environments). These are high-quality, lossless raster images used in professional printing and medical imaging (e.g., ImageJ). While they offer superior detail, they are uncompressed and unwieldy for web use, often exceeding 50MB per file. Users in this category should convert to JPG or WebP for instant viewing and sharing, or PDF for document compilation. Less common variants include the PlayStation TIM format (legacy game textures) and Terminfo source files on Unix systems.
Convert.Guru analyzes your TI file, detects the exact format, and lets you read the text inside.
Users also converted UCS, CIM and 20 files.
If you want to convert TI file to , you can use TerraIndex or similar software from the "Geotechnical Soil Data" category. In the File menu, look for Save As… or Export….
To convert files to TI, try TerraIndex or another comparable tool in the "Geotechnical Soil Data" category.
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 TI converter.