Extract text from Geotechnical data files (GEF)
To convert GEF Data files to another format, you need GEFView or other Data software.
To convert other file formats to the "Engineering Data File" file type, you need software like GEFView or a similar tool.
The .GEF file is primarily a Geotechnical Exchange Format standard file used extensively in civil engineering. It stores soil measurement data, most commonly from Cone Penetration Tests (CPT) or boreholes. These files contain structured ASCII text that defines soil properties, depths, friction, and resistance metrics. You can open geotechnical .GEF files using specialized engineering software like GEFView or other tools developed by Deltares.
Because .GEF files are tied to niche engineering workflows, they are highly specialized. The main disadvantage is that standard spreadsheet or graphing tools cannot automatically parse the header metadata alongside the raw measurement blocks. Users frequently need to convert .GEF to CSV or XLSX to analyze the raw data in Microsoft Excel, or to PDF to share visual soil graphs with clients. During conversion to generic spreadsheets, the specific visual graphs are lost, leaving only the raw numerical data.
If your .GEF file is not geotechnical data, it might be an HMI/SCADA project configuration file for GE Digital CIMPLICITY, a Chinese e-tendering document, a Global E-document Format file, or a German GEFAHREXPERT risk assessment file. These alternate formats are closed and proprietary, sometimes relying on Microsoft Compound or ZIP structures under the hood.
Standard online converters usually fail to process .GEF files because they lack the specific parsing logic for civil engineering standards or proprietary SCADA systems. Often, only the original software can properly read or export the data. If our analysis detects a supported underlying or embedded format - like a ZIP archive or standard text - viewing or conversion may still be possible.
Convert.Guru analyzes your GEF file, detects the exact format, and lets you read the text inside.
Users also converted IVC, PTM and QZTP files.
If you want to convert GEF file to , you can use GEFView or similar software from the "Geotechnical Data Exchange" category. In the File menu, look for Save As… or Export….
To convert files to GEF, try GEFView or another comparable tool in the "Geotechnical Data Exchange" 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 GEF converter.