How to Open RPMSG File Without Outlook?

Jackson Strong | August 6th, 2025 | Data Backup

Summary: This post will guide you on how to open RPMSG file without Outlook. If you also have the same query, then this post is for you. Here, we are going to explain two different methods to view RPMSG file without Outlook. One is a manual solution, and the other is an automated approach.

RPMSG file is a Rights Management email message created by MS Outlook. These files are used to protect sensitive information by restricting actions. It ensures that only the sender and authorized recipients can access the content of the message. Microsoft Outlook has built-in functionality to handle RPMSG files. However, if you don’t have Outlook installed, then opening an RPMSG file can be difficult. Here, we will provide two best ways to access RPMSG file without Outlook.

Let’s explore the method without any further delay.

How to Open RPMSG File without Outlook?

  1. Open Outlook Web App in your browser.
  2. Locate the email with the RPMSG file.
  3. If the file was sent as an attachment, click on the email to view it.
  4. Click on the RPMSG file.
  5. Outlook Web App will detect that the file is a Rights-Protected Message.
  6. A secure viewing window will open inside your browser.
  7. If it asks for permissions, click Sign in with your Microsoft account credentials.
  8. Now, the system verifies whether you have the right to view the protected message.
  9. Once authenticated, the protected email content will be displayed in Outlook Web App.

How to View RPMSG Files without Outlook?

An instant solution to access emails from PST file is the Advik MSG Converter. The software enables you to open RPMSG files without Outlook in just a few simple clicks. With this utility, you can convert RPMSG to PDF and other formats to read without Outlook. It preserves email attributes and structure while converting. Using this application, you can open multiple files in a single attempt.

Click on the below link to download it for FREE.

Steps to Open RPMSG File Without Outlook

1. Run the software on your Windows PC.

run the tool

2. Add the RPMSG file into the software and click Next.

Add the RPMSG file

3. Choose the required RPMSG files and press Next.

Open RPMSG File Without Outlook

4. Now, select a saving option from the given list.

select a saving option

5. Browse the target location and click the Next button.

click the Next

The software will start converting RPMSG file into your desired format. Once the conversion is complete, you can easily open the exported file without Outlook.

Advantages of using Automated Tool

  • Open RPMSG File in Bulk: This software will enable you to view multiple RPMSG files at once. Using Select Folder option, you can add multiple RPMSG files and then export them all together.
  • Export RPMSG into Multiple Formats: The software offers various saving options to save RPMSG files. You can convert RPMSG to MBOX, EML, CSV, HTML, and many other formats.
  • Freedom to Choose Destination Path: This toolkit gives the freedom to choose a location to save the resultant file. In this way, you can easily access the file after the conversion.
  • Simple GUI: This tool has an easy-to-use interface. Any novice user can easily use it without having any technical guidance.
  • Windows Supportive: You can run this tool on any Windows-based system. It supports all the latest and old versions, including Win 11, 10, 8.1, 8, 7, and all editions below.

Conclusion

Opening RPMSG files without Outlook can be tricky without the right solution. Here, we have mentioned both manual and automatic solutions so you can choose according to your needs. However, when implementing these solutions, we found manual methods to be a bit slow and time-consuming. Users are advised to use the quick solution to open RPMSG file without Outlook.