Have you tried the msg viewer, downloadable from https://www.freeviewer.org/msg/ ? That may fit your need, but it seems unusual (to me) that people are sending msg files. Good luck.

Have you tried the msg viewer, downloadable from https://www.freeviewer.org/msg/ ? That may fit your need, but it seems unusual (to me) that people are sending msg files. Good luck.

No, I have used this one, and I got stuck. I have very large MSG files, and this way didn't work. But thank you.

Which is the format of your message files?

Are you trying to read .msg messages that people have sent you as attachments or stored in some other way on disk? Or could you get these messages by having Thunderbird connect with your Outlook account?

I guess there are outlook message files. They are a proprietary file format. The internet abounds with products that purport to convert MSG to EML. That would be the best approach find a converter that does the necessary conversions.

The google AI offered a few free online sources.

There are ways to open your MSG files in Thunderbird, but if you want a reliable solution, you can open MSG files in Thunderbird using the BitRecover MSG converter, which lets you open and convert large MSG files into Thunderbird in bulk without data loss. This is a reliable solution for IT professionals, enterprises, and individuals. But if you have just a few MSG files i would suggest you to use the manual free ways. This automated approach is useful when you have sensitive data in bulk to transfer into Thunderbird.