Extract text from Surveying job files (MJF)
To convert MJF Job files to another format, you need Topcon MAGNET Field or other GIS software.
To convert other file formats to the "Surveying Job Database" file type, you need software like Topcon MAGNET Field or a similar tool.
A .MJF file is a MAGNET Job File used in the surveying and construction industries to store field measurement data, GPS points, linework, and project settings. Created primarily by Topcon MAGNET Field software, it is also supported by tools like Trimble Business Center.
Internally, the .MJF format functions as a standard SQLite database, but it uses a highly specialized and proprietary schema. Because of this, standard text editors or common CAD programs cannot natively open these files. Opening them usually requires an expensive subscription to niche surveying software, which creates a massive bottleneck when field crews need to share raw data with office engineers or architects who only use standard tools.
To make this data usable, you typically need to convert the point coordinates and lines into CSV (for spreadsheets), DXF or DWG (for CAD systems), or XML (for generic data exchange).
This file format is notoriously difficult to open or convert online because only the original software can properly interpret the complex, internal spatial database schema.
Convert.Guru analyzes your MJF file, detects the exact format, and lets you read the text inside.
Users also converted GGF, VCL and TXL files.
If you want to convert MJF file to , you can use Topcon MAGNET Field or similar software from the "Surveying Construction Job Storage" category. In the File menu, look for Save As… or Export….
To convert files to MJF, try Topcon MAGNET Field or another comparable tool in the "Surveying Construction Job Storage" 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 MJF converter.