MSO File Extension

MSO file extension is created by Microsoft, also known as Inline E-mail Attachment. MSO has been classified as Misc Files. The format of this file type has not been determined yet. You can open MSO files in Microsoft Outlook 365 program.

Inline E-mail Attachment File Type

Inline E-mail Attachment File Type

Extension	.mso
Developer	Microsoft
Popularity	Very Common Common Average Uncommon Rare 5.0 (1074 Votes) Thank you for voting!Already voted, thanks!
Mime Type	mime-type/not.available
Default Program	Microsoft Outlook 365
Category	Misc Files
Format	Not Available
Updated	12/1/2024

What is a MSO File Type?

The Oledata.mso file will appear as a separate attachment on n'computers that do not have Microsoft Outlook 2000 or later.

Free online MSO Tools & Apps

We have also the free online .MSO (Inline E-mail Attachment) file extension apps that can allow to view, edit, convert from to MSO, merge, split and compare the MSO files without installing anything on your system. Please click on the links to explore the complete list of details for each required feature.

MSO Files Common Issues

There are few common issues with the Inline E-mail Attachment .MSO File Extensions while opening the .MSO files on Windows and MacOs, we have solution to those issues such as:

Can't Open MSO Files?

1. You must have supported software programs installed for Inline E-mail Attachment on your system such as Microsoft Outlook 365.
2. Associate default Microsoft Microsoft Outlook 365 program for *.mso (Inline E-mail Attachment) files.
   
   

   Associate MSO Default Program on Windows

   1. Right-click a *.MSO (e.g example.mso) file and click Open With.
   2. In the Open with dialog box, click Microsoft Microsoft Outlook 365 program Or click Browse to locate the program (*.exe) that you want.
   3. Select check box for Always use this app to open .mso files.
   
   

   Associate MSO Default Program on MacOs

   1. Click *.MSO (e.g example.mso) file and click information -> Open With.
   2. In the programs list, click Microsoft Microsoft Outlook 365 program Or other appropriate program that you want.
   3. Confirm Change for all... and Contine.
   4. A message will appear "This change will be applied to all files with .Microsoft Outlook 365 extension. By clicking Continue you confirm your selection", click Contine to apply changes.

Related MSO File Extensions

MSO default file extension is .MSO and other similer related extensions are:

All Platform Software Programs for MSO File Extension

List of all softwares that can open the MSO files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Open MSO File on Windows

	Software	License	Developer
	Microsoft Outlook 365 for Windows	Commercial	Microsoft
	Microsoft Windows Installer 000 for Windows	Included with OS	Microsoft

Open MSO File on Mac OS

	Software	License	Developer
	Microsoft Outlook 365 for MacOs	Commercial	Microsoft
	Microsoft Outlook 365 000 for MacOs	Free+	Microsoft

Open MSO file on Linux

	Software	License	Developer

Open MSO file on Web

	Software	License	Developer

Open MSO file on iOS

	Software	License	Developer

Open MSO file on Android

	Software	License	Developer

About Licensing

1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
3. Free⁺ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

About MSO - Inline E-mail Attachment

Updated 12/1/2024

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