What is a mso file and how do I open a mso file?
An MSO file is sent with Microsoft Word 2000 email attachments and contains information that allows the attachment to be rendered within the email message. The Oledata.mso file appears as a separate attachment on computers that do not have Microsoft Outlook 2000 or later installed.
Relevant mso file links:How to open mso file on Youtube
How to open mso file on Wikipedia
How to open mso file on Microsoft.com