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 ...

Klammer helps you unpackage Winmail.dat and MSG files so you can get to the important content that is wrapped up inside them.

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.