What data file types does Outlook support? While working with Outlook, you will encounter two data file types: OST and PST. OST (Offline Storage Table) file types allow you to work offline.

Once you have located the OST file, follow the methods below to open the it. Method 1: Using Free Xst Reader Tool Xst Reader is a free open-source viewer that allows you to open and view OST and PST ...

A File Cannot Be Opened in Microsoft Office Outlook. If you cannot open Microsoft Outlook for some reason, it can make communicating with employees, clients or suppliers rather difficult in some ...

There are several reasons why you can’t open Outlook, such as corrupt or damaged files, problematic add-ins, or your computer has a virus that is causing Outlook to be unresponsive.

One prevents the body of an email from being displayed In Outlook Express & the other apparently prevents an MHT file form opening locally. I have reversed the change & now the files open normally ...

Your Outlook Data File is composed of a file header, located at the beginning of the document, and the actual data that makes up your personal folders. Contained in the header is information about ...