Open File Explorer

Open OST on Windows OS

• Locate OST file in Windows Explorer and right-click on it.
• Look for the "Open with" menu option in the popup menu. If you open this menu you will see list of the applications which can open OST file.
• If there are no programs which can open the OST file are installed you will see "Open with..." button in the popup menu. Click on it.
• Dialog will open with Windows OS suggestion about what application can open OST file.
• If you do not see the application which correctly matches the file try to search the internet for one of the apps mentioned above or look for technical file description below. Each description have "Application name" in it which can open the OST file.
• If "Application name" is missing look for the "Windows Object" and "Executable command" fields because they typically contain application which can open OST file.

Open .ost File and OSTFile.

File Extension	.ost
Description	Microsoft Office Outlook Offline Folders
Sample File Name	[Sample File].ost
Windows Object	OSTFile
Executable Command To Open .ost File
Mime Type
Links	How to open OST File instructions on extensionfile.net Placing it here to fix Firefox 2.0 layout links

Open .ost File and Outlook.File.ost.14.

File Extension	.ost
Description	Outlook Data File
Sample File Name	[Sample File].ost
Windows Object	Outlook.File.ost.14
Executable Command To Open .ost File
Mime Type
Links	How to open OST File instructions on extensionfile.net Placing it here to fix Firefox 2.0 layout links