.DRF File Extension
File Type 1VIZ Render File
What is a DRF file?
Discreet Render Format (DRF) file created by VIZ Render, a program included with older versions of Autodesk Architecture; saves a rendered image of buildings or other modeled structures; can be opened in 3ds Max, but can only be created by VIZ Render.
After opening a DRF file in 3ds Max, you must save it as a .MAX file since saving DRF files is not supported.
File Type 2Dynojet Run File
.DRF File Association 2
Data file created by Dynojet vehicle diagnostics tools; saves car information from a diagnostics test; may store horse power, air temperature, humidity, absolute pressure, and vehicle model data; used for graphing vehicle diagnostics information.
DRF files can be viewed using WinPEP (Windows Performance Evaluation Program), which was formerly called the Dynojet RunViewer.
File Type 3Delphi Resource File
.DRF File Association 3
Temporary file created by Delphi, a software development programming language and IDE; saves package requirement information when a project is compiled with packages; used during the software building process.
DRF files are sometimes referenced in Delphi error messages when a program cannot located or create the file in a temporary location. To fix this, you may be able to explicitly rebuild the application or make sure the temporary location is accessible.