OST File Extension

Have a problem opening a .OST file? We collect information about file formats and can explain what OST files are. Additionally we recommend software suitable for opening or converting such files.

What is the .OST file type?

☑ Outlook Data File.

☑ CoolUtils Outlook Viewer.

☑ Outlook Offline Folder.

Software to open or convert OST files

You can open OST files with the following programs:

 
CoolUtils Outlook Viewer by Softplicity, Inc.
 
PSTViewer Pro by Encryptomatic, LLC
 
PST Walker by PST Walker Software
 
On-Screen Takeoff by On Center Software, Inc.
 
OutlookViewer
 
Free File Viewer Pro
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OST File Extension

What is the .OST file type?

Software to open or convert OST files

Popular Formats

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