.MSO File Extension
Are you having difficulty opening a file that ends with .MSO? Such files can be executed only by certain programs. If you cannot open the .MSO file, it can be due to the following reasons: either you do not have an appropriate program to open it, or your file association is corrupted. For more information about this extension, please read the article below.
What is a .MSO file?
.MSO file belongs to the category of Misc Files used in operating systems such as Windows 11, 10, Windows 7, Windows 8 / 8.1, Windows Vista, Windows XP.
mso
.MSO file is associated with Microsoft Office Macro Reference File developed by N/A, has a N/A Format and belongs to Misc Files category.
Inline E-mail Attachment
.MSO file belongs to the category of Misc Files used in operating systems such as Windows 11, 10, Windows 7, Windows 8 / 8.1, Windows Vista, Windows XP.
mso
.MSO file is associated with Inline E-mail Attachment developed by Microsoft, has a N/A Format and belongs to Misc Files category.
An MSO file (Inline E-mail Attachment File) typically contains an email message with one or more attachments. The attachments can be of any type but are usually images, PDFs, or documents that can be opened in a web browser. When an email client displays an email message with HTML content, it automatically integrates any MSO files into the message so that the recipient can view them without having to open another application.
More information
An MSO file is often called "Oledata.mso" because this file type contains data that Microsoft email clients can use for displaying inline images in emails. MSO files can be opened and viewed in a text editor. However, they are not meant to be opened manually as they are encoded and cannot be read and understood.
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