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format file mso

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.

Mac OS
Recommended mso file download:
Microsoft Outlook 2013
Microsoft Outlook 2011
Detail mso file extension information:
File Type: mso
File Format: Inline E-mail Attachment
Primary Association: Multiple Use Files