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Microsoft Organization Chart chart data

File type: Document file, Microsoft Office file

An mso file extension is used for organization charts created with Microsoft Organization Chart software tool, that was part of Microsoft Office 2000 and earlier. Newer versions of Microsoft Office can import mso files and saved to different format.

Found 4 different file type records with the same mso filename suffix.

What is mso file?

File type category:
Document file
Microsoft Office file

Date updated: April 19, 2024

The mso file extension is primarily related to Microsoft Organization Chart, a tool that installs a separate application to create and edit organization charts that is provided by Microsoft since PowerPoint 95.

Up until  Microsoft Organization Chart 2.0 it was a separate program, but now is available Organization Chart Add-In for Microsoft Office.

The mso file contains an organization chart, which can be imported to any Office document as an object.

Although the the Microsoft Organization Chart is integrated to latest versions of Microsoft Office, it is not installed by default. You have to manually install it during the installation process (or add it in later via reinstall / change). You can find it under PowerPoint items.

Users can also create organization charts in Microsoft Visio without the Organization Chart Add-In installed. But these are saved in different format.

How to open mso file?

In the past you could open *.mso file in special Microsoft Organization Chart program. Now it is integrated in MS Office apps and you can import it as OLE object.

How to convert mso file?

You cannot actually convert *.mso file to anything else. However you can import the chart to an Office document and export or convert the whole file.

Suggested software to open mso file:

Associated software actions with the mso file

Software applications that can open mso files:

Software applications that can edit mso files:

Software capable of saving mso files:

Software apps that create mso files:

Software apps that import mso files:

ActiveMime object

File type category:
Various data file

Date updated: December 30, 2024

The mso file extension was also reported to be used for ActiveMime objects, some sort of 'spin-off' of ActiveX content.

ActiveMime is simply zlib-compressed data starting at offset 0x32, then a standard OLE file with the VBA macro project.

How to open mso file?

You most likely cannot access these files manually as part of other program.

How to convert mso file?

We do not know about any possible conversion for this type of *.mso files.

Suggested software to open mso file:

Associated software actions with the mso file

Software applications that handle other tasks involving mso files:

Microsoft Windows

MedlySound module

File type category:

Date updated: May 30, 2017

Record marked as obsolete and not updated for a long time.

The mso file extension is associated with MedlySound, a very elaborated editor.

Earlier audio routines called 'Future Player' (Hybris and Imploder3). Imploder4 music is made with Medley 1.0. created by Paul van der Valk. Old file extension.

OLE web page storage stream

File type category:
Email related data file
Internet related file

Date updated: April 19, 2024

File extension mso seems to have been in the past used for a special attachment format generated by earlier versions of Microsoft Word (and possibly other MS Office programs) in conjunction with earlier versions of Microsoft Outlook.

Typically this happens when Word is used as email editor, the document is being send out as the email body which is in HTML format. Usually found as oledata.mso file.

The mso file contains necessary information to properly render the attachment in the message in its originating program. This happens when the file is opened in Outlook 2000 and 2003, and was fixed in 2007 and later. However the "problem" is generated by the sender, not by the recipient.

If you have Outlook installed, you will not see this file, as the document will be rendered properly in HTML using the data from oledata.mso.

However if your computer does not have Outlook installed and you use other mail client, you will see the oledata.mso file as an attachment.

The mso file does not contain the actual document, which can be either found in the body of the e-mail message, or as another attachment as .doc file.

You can disable this function in Word by:

  • Open Microsoft Word
  • Go to Tools ► Options… ► General tab
  • Click the button E-mail Options…
  • You can set the HTML filtering options on the General tab
  • Confirm it by OK

This is not exclusive to Word, but just happened mostly with the word-processor. But same files were for example generated by FrontPage or when saving documents to office html format and possibly also with broken links to files like filelist.xml, editdata.mso and oledata.mso.

How to open mso file?

This file cannot be opened directly. When you open the .doc file with a *.mso file together in older Outlook, the Word document will be rendered as HTML web page.

How to convert mso file?

This file type is not meant for conversion, you can however convert the *.doc file to which the *.mso file is attached to.

Suggested software to open mso file:

Associated software actions with the mso file

Software apps that create mso files:

Software apps that import mso files:

Software apps that export mso files:

Microsoft Windows

Convert .mso files

Related file extensions