What is MSG File Extension?
In the MS Outlook and MS Exchange, the MSG file format is created for every single mail. MS Outlook holds all properties of emails including date, recipient, subject and sender in MSG. Its format is based on CFB which users can view using a MAPI app. It holds simple ASCII text for both header and main message body including attachments and hyperlinks.
It supports MS Outlook.
It is the tech giant Microsoft Corporation takes care of MSG.