Click the "Select File" button above, and choose your G01 file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert G01 to another file type
To convert G01 geometry files to another format, you need HEC-RAS or other GIS software.
Convert a file to G01
To convert other file formats to the "Hydraulic Analysis Data" file type, you need software like HEC-RAS or a similar tool.
About G01 files
A .g01 file is a specialized geometry data file generated by HEC-RAS (Hydrologic Engineering Center - River Analysis System). It defines the physical shape of a river system, storing critical hydraulic data like cross-section coordinates, reach lengths, and bridge/culvert dimensions. These files are typically part of a project sequence, where .g01 represents the first geometry version, .g02 the second, and so on.
For non-engineers, the main drawback is that .g01 files are plain ASCII text but are unintelligible without the host software. While you can open them in Notepad to see raw coordinate lists, you cannot visualize the river banks or hydraulic structures without HEC-RAS or a compatible GIS viewer like Flood Modeller. Users often need to convert these files to PDF for engineering reports or export them to DXF and Shapefile formats for use in AutoCAD or ArcGIS.
Convert.Guru analyzes your G01 file, detects the exact format, and lets you read the text inside.
If you want to convert G01 file to , you can use HEC-RAS or similar software from the "River System Geometry Data" category. In the File menu, look for Save As… or Export….
To convert files to G01, try HEC-RAS or another comparable tool in the "River System Geometry Data" category.
The G01 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 G01 converter.