Open MSO files

  • Full name
    Microsoft Organization Chart Chart Format
  • Developer
    Microsoft
  • Popularity
Have you encountered a problem with a MSO file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a MSO file here. In the further part of this page we have added a list of programs that should open your MSO file. It is enough you choose a proper application for your operating system, download and install it.

What is MSO file?

Files with the extension MSO contain an inline e-mail attachment. This means that they contain a Microsoft Word 2000 document that was sent as an Outlook HTML message with Word. The file, which is mostly Oledata.Mso contains all the necessary data to correctly display the document within Outlook.

More info

If the message is displayed on a system that does not have Outlook 2000 installed, the oledata.Mso file appears as an attachment.

The file can not be used or edited on its own and should not be deleted as this can make the corresponding message unreadable.

Programs which can open a MSO file

How to open file with MSO extension?

In order to open a file with MSO extension one of the following programs must be installed on user’s system. If a problem with opening MSO file occurred, it is highly possible that none of the listed programs is present on user’s system. Even if one or more said programs are installed, there may be issues related with given programs. In order to solve a problem with MSO files, follow the instructions below.
1
Install Outlook or other program from the list

Most often resolving problems with opening MSO files is very simple. Just install an appropriate program that supports such files. All of the listed programs support MSO files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of MSO files or offer file conversion options, but may not be capable of editing such files.

Set Outlook as the default program for opening MSO files

It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate MSO files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Outlook applications is not on the list, select "Browse" option in order to manually locate the directory where Outlook has been installed.

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Check the section that lists most common problems with MSO files

Sometimes problems with opening MSO files may not lie with the application itself, but can arise due to other causes, such as:

  • File data is corrupted
  • MSO files has been not been completely download from the internet (only a part of the data has been downloaded)
  • Currently used user account hasn’t been granted necessary privileges to open MSO files (should that be the case, please contact your system administrator or IT specialist)
  • MSO file was being copied from a corrupted storage device and is incomplete or data is corrupted. (Copying files from unknown or untrusted sources should be conducted with great care as such files may contain malicious software, which can damage your system)

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