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DEF file is typically associated with Export Definition File, Export Definition File, Export Definition File. You can open DEF with following applications:

  • Microsoft Visual Studio 10.0
  • Microsoft Visual Studio 9.0
  • Microsoft Visual Studio 9.0

Open DEF on Windows OS

  • Locate DEF file in Windows Explorer and right-click on it.
  • Look for the "Open with" menu option in the popup menu. If you open this menu you will see list of the applications which can open DEF file.
  • If there are no programs which can open the DEF file are installed you will see "Open with..." button in the popup menu. Click on it.
  • Dialog will open with Windows OS suggestion about what application can open DEF file.
  • If you do not see the application which correctly matches the file try to search the internet for one of the apps mentioned above or look for technical file description below. Each description have "Application name" in it which can open the DEF file.
  • If "Application name" is missing look for the "Windows Object" and "Executable command" fields because they typically contain application which can open DEF file.

Open .def File and VisualStudio.def.10.0.

File Extension.def
DescriptionExport Definition File
Sample File Name[Sample File].def
Application NameMicrosoft Visual Studio 10.0
Windows ObjectVisualStudio.def.10.0
Executable Command To Open .def File"g:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe" /dde
Mime Typetext/plain
Links
  • Open DEF File instructions on extensionfile.net
  • Placing it here to fix Firefox 2.0 layout links

Open .def File and VisualStudio.def.9.0.

File Extension.def
DescriptionExport Definition File
Sample File Name[Sample File].def
Application NameMicrosoft Visual Studio 9.0
Windows ObjectVisualStudio.def.9.0
Executable Command To Open .def Filec:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe /dde
Mime Typetext/plain
Links
  • Open DEF File instructions on extensionfile.net
  • Placing it here to fix Firefox 2.0 layout links

Open .def File and VisualStudio.def.9.0.

File Extension.def
DescriptionExport Definition File
Sample File Name[Sample File].def
Application NameMicrosoft Visual Studio 9.0
Windows ObjectVisualStudio.def.9.0
Executable Command To Open .def File"C:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe" /dde
Mime Typetext/plain
Links
  • Open DEF File instructions on extensionfile.net
  • Placing it here to fix Firefox 2.0 layout links

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