Extract text from TP3 files
To convert your TP3 file to another format, you need Topcon 3D-Office or other Cad software.
To convert other file formats to the "Civil Engineering Project" file type, you need software like Topcon 3D-Office or a similar tool.
A .TP3 file is a proprietary project archive used primarily by Topcon Positioning Systems within their 3D-Office software suite. These files are the backbone of modern machine control, encapsulating TIN (Triangulated Irregular Network) surfaces, linework, control points, and GNSS localization data required to guide heavy equipment like dozers and graders.
The main challenge with .TP3 files is their proprietary nature. They are designed to function exclusively within the Topcon ecosystem (e.g., Pocket 3D, 3D-Office). This is a key problem when data needs to be shared with subcontractors using Trimble or Leica Geosystems equipment, or when engineers need to import the survey data back into design suites like Autodesk Civil 3D. Without the specific host software, the file is essentially a "black box," preventing users from verifying surface elevations or extracting point data.
To overcome these interoperability barriers, the standard workflow is conversion:
(Note: A very small percentage of legacy .TP3 files may be template files from the obsolete Harvard Graphics for DOS, which are unrelated to construction data.)
Convert.Guru analyzes your TP3 file, detects the exact format, and lets you read the text inside.
Users also converted PT3, TXT, DWG, TPS, PDF, DXF, TN3, ZIP, 7Z, F3D, JPG and CSV files.
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 TP3 converter.