PST Viewer is a free and useful tool to read archived PST or OST files. This offline email client allows to you read archived Outlook emails and saveextract email attachments. The app will automatically scan all PSTOST files on your device. You can choose a PSTOST from the list or select the PST file you want to view from any file manager and open it with this application. Also, you can use this app as default PST viewer.
PST is "Personal Storage Table" file.
OST is "Offline Storage Table" file.
In PST Viewer 1.0.1