How to open .OST file extension?

If you cannot open a new file that has been saved in the .OST format you need to download the appropriate software. The manufacturer of .OST files is Microsoft; .OST files belong to the Misc Files category. After downloading the application from the list available on our website just run an unknown file, and as the default set the newly installed application supporting the .OST files. Activities performed in the order described should solve the problems with all the files in the .OST format.

• What is .OST file?
• How to open .OST file?
• What is .OST file?