Opening an OST File in Microsoft Outlook. Microsoft Outlook categorizes Outlook Data Files into two types: PST and OST files. PST files contain data stored in your personal folders, whereas OST ...

Microsoft officially announced that it would be opening its Outlook’s PST file format by publishing documentation. Each time in the past that Microsoft offered to publish technical ...

I have created a folder on my partition and copied the .pst file over. How do I change the default location of the .pst file so that it uses the one on the separate partition.

3] Export the Registry key Outlook lets you create multiple folders to organize your emails in a better way. When you export Outlook .PST file, that file also contains all your folders and subfolders.