Opening an RK File

The RK file type is primarily associated with WinRK.

RK	File extension: RK
	File type:	archived file

What is an RK file

RK files mostly belong to WinRK by MSoftware. RK files are compressed archive files created using the WinRK format.

Main Usage: The RK compressed archive is created using WinRK for the purpose of archiving files into a single file and reducing the disk space required to store data contained in this archive. This format supports archives of an unlimited size, which makes it extremely useful for creating large backups. Additionally, it is considered a reliable format due to the numerous programs that support compressing and decompressing RK files.
Compression: The WinRK format uses a variety of compression algorithms, including PWCM, FPW, ROLZ2, and ROLZ3, as well as some other proprietary algorithms. The implementation of these numerous proprietary algorithm sets this format apart from more conventional compressed archive formats, such as 7Z, ZIP, and RAR.

How can I open an RK file?

You need a suitable software like WinRK to open an RK file. You need a suitable software like WinRK from MSoftware to open an RK file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your RK file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a RK file directly in the browser:. Just drag the file onto this browser window and drop it.

Online RK Text Viewer

Choose your .rk file to view

or drag and drop it here

Online File Viewer

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How to extract texts from RK files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

If you want to extract texts from RK file or capture a screenshot, you can use our free Online RK File Viewer:

To do so, click the "Choose your .rk file to view" button above.
After your file is opened in browser,
click "Save as..." in the menu.
Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
Your file will be converted and downloaded.

.RK File Won't Open? Here is What You Can Do

Because .RK files can originate from different programs, they aren't universally openable by standard applications.

Identify the Source: If downloaded from an older software repository or received from someone compressing large datasets, it is likely a WinRK archive.
Check the Header: Open the file in a hex viewer to inspect the first few bytes:
- "RK" magic bytes often indicate a WinRK compressed archive.
- Mostly unreadable binary data confirms it is a compressed format.
- Readable text suggests a misnamed document.
Use the Original Software: You usually need the original program to open it; try WinRK by MSoftware, or ask the sender if you are uncertain.
Use this Webpage: Drag and drop your .RK file onto this page to detect its exact format, extract metadata, and preview readable contents.

Technical Data for RK File Extension

File classification:

Compressed

Related files:

apk, zz, data, wdl

Mime type:

application/octet-stream

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: srkfile
EXEFile: %SystemRoot%\System32\srkey.exe -parse %1

ProgramID: WinRK.RK.File
EXEFile: %ProgramFiles%\WinRK\WinRK.exe -explorer close -open

an rk archived file is a special file format by MSoftware and should only be edited and saved with the appropriate software.

How to solve problems with RK files

Associate the RK file extension with the correct application.
Update your software that should actually open archived files. Because only the current version supports the latest RK file format. Search, therefore, e.g. on the MSoftware manufacturer website after an available WinRK update.
To make sure that your RK file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .RK file online - secure, fast, and no downloads needed.