Opening RPMSG Files

The RPMSG file type is primarily associated with Outlook.

RPMSGFile Extension RPMSG
File extension: RPMSG
File type:  restricted permission message

What is an RPMSG file?

RPMSG files mostly belong to Outlook by Microsoft. An RPMSG file is an encrypted email message sent/received by Outlook email client when Microsoft Information Protection is installed. Office Message Encryption can also encrypt an RPMSG email message so that only authorized users can read or print such messages. A standalone Outlook installation or Outlook Web Access can be used to open and read an RPMSG file.

How to open an RPMSG file

You need a suitable software like Outlook from Microsoft to open an RPMSG 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 RPMSG file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a RPMSG file directly in the browser:. Just drag the file onto this browser window and drop it.

Online RPMSG Text Viewer

Choose your .rpmsg file to analyze

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RPMSG file format details:

To find out what program is needed to open RPMSG files, you need to determine the file format. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. Nonetheless, different programs can utilize the same file extension to represent distinct file formats. Double-clicking on the file often results in an error when opening. So a detailed analysis of a file is vital in order to determine the format and the associated program. In the following you will find our evaluation of the RPMSG files:

The RPMSG extension is very commonly found and mainly uses a defined RPMSG format.

If you want to find out which format your RPMSG file belongs to, just click on the button "Choose your .rpmsg file to analyze".

Technical Data for RPMSG File Extension

File classification:
Encoded
Related files:

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: viewer.rmh.1, FileType: Microsoft Rights Managed HTML Document, AppName: Rights Management Add-on for Internet Explorer

ProgramID: viewer.rmh.1
EXEFile: %ProgramFiles%\Microsoft\Rights Management Add-on\RMArouter.exe


an rpmsg restricted permission message is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with RPMSG files

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