The File Extensions Database

.DRF File Extension

  • Developer by: Autodesk
  • Category: 3D Image Files
  • Format: Binary

What is an .DRF file?

.DRF is VIZ Render 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.

Programs that open VIZ Render File
Autodesk 3ds Max 2018
Autodesk 3ds Max 2018
File Type 2 Dynojet Run File
Developer by: Dynojet Research Category: Data Files Format: Binary

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.

Programs that open Dynojet Run File
Dynojet WinPEP
File Type 3 Delphi Resource File
Developer by: Embarcadero Technologies Category: Developer Files

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.

Programs that open Delphi Resource File
Embarcadero Delphi

How to solve problems with DRF files

  • Associate the DRF file extension with the correct application. On :
    Windows: Right click on any DRF file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.DRF files". Mac: Right click (or Ctrl-click) the DRF file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .DRF is VIZ Render File. Because only the current version supports the latest DRF file format. Search, therefore, e.g. on the Autodesk manufacturer website after an available .DRF is VIZ Render File update.
  • To make sure that your DRF file is not corrupted or virus-infected, get the file again and scan it with antivirus software.