Right-click a file with the extension whose association you want to change, and then click Open With. In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want. Select the Always use the selected program to open this kind of file check box.
Oct 19, 2019 Find the ISO file you want to open. Go to the folder location of your ISO file. Select the ISO file. Click once the ISO file to do so. It's in the menu bar at the top of the screen. A drop-down menu will appear. MSO file stores information about the attachment of an e-mail message. Microsoft Outlook software allow to open MSO file on Windows operating system. File extension errors generally occur when the appropriate program is not installed in your system. Scan your system to identify and fix MSO file extension errors.
How To Open .mso File Extension
How To Open Mso Files
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