.RK File Extension

WinRK Archive

Developer RK Software
3.4  |  9 Votes

What is an RK file?

An RK file is a compressed archive created by RK Archiver or WinRK. It contains one or more files that have been compressed and packaged together for easier storage and sharing. RK files are quite rare, so no other programs can open them.

More Information

Screenshot of a .rk file in RK Software WinRK
RK file open in RK Software WinRK

RK, also known as RK Archiver, and WinRK are archiving programs that were published by RK Software. These programs could save archives in several formats, including their native, proprietary RK format.

WinRK and RK Archiver compress RK files using several different compression algorithms, including PWCM, FPW, ROLZ2, ROLZ3, and others. In some cases, RK files are password-protected, to prevent unauthorized users from opening them.

NOTE: RK Software eventually changed its name to M Software.

How to open an RK file

You can open an RK file with WinRK (Windows), which is discontinued but still available online. To do so, select File → Open... from the program's menu bar, and then navigate to and open your RK file.

To extract the files your RK file contains:

  1. Select the Extract button in WinRK's toolbar.
  2. In the Extract Files window, specify the location at which to save your extracted files.
  3. Click Extract.
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Programs that open RK files


Verified by FileInfo.com

The FileInfo.com team has independently researched the WinRK Archive file format and Windows apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

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