Use Microsoft Outlook to open the .MSG file
Double-click the .MSG file if Outlook is installed
Drag and drop the .MSG file into an open Outlook window
Open the file with a compatible email viewer that supports .MSG files
Convert the .MSG file to PDF or EML if needed for other apps
Use a text editor only to view raw data, not the formatted email
On Mac, use a third-party .MSG viewer if Outlook for Windows is unavailable
On Linux, use a compatible email client or converter tool
If the file will not open, check whether it is corrupted or incomplete