MSG files are utilized by Microsoft Outlook to store various mailbox items, including emails, contacts, and calendars. If you ever need to convert an MSG file into a different format, consider using the VSPL MSG converter software. This tool facilitates the seamless migration of MSG files to your Office 365 account, preserving the original format and structure without any alterations.... https://azuremarketplace.microsoft.com/en-us/marketplace/apps/83841710.vspl-msg-to-office-365-migration?tab=Overview