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How to open .VDF file extension?

File Type : AntiVir Virus Definition (Avira GmbH)
Compatible with (WinXP,Vista,Win7,Win8 and Win10)

Looking for a program to open .VDF files?

"Windows unable to open a file!" is probably the most common error faced by millions every day. This is either because the program required to open a file is not available on your system or there may be other issues.

We recommend that you run a free scan to check for missing drivers.



What is .VDF file extension?

.VDF file extension is a known file type. This section of tells you everything you need to know about this extension.
File format used by Valve's Source game engine; uses Valve's KeyValues format, which is a plain text format that saves key-value parameters in a tree hierarchy; used for various kinds of game metadata, including data for resources, installation scripts, configuration scripts, and visualization elements. VDF files can often be seen when installing games distributed through Valve's Steam game client. NOTE: You can view more information about Valve's KeyValues format on the KeyValues Wiki Page.
You can see a list of software programs here on that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.

Software that can be used to open .VDF files:

Microsoft Windows:
  • Valve Source SDK
  • Microsoft Notepad
  • Other Text Editor