SysInfoTools OST viewer freeware will securely save OST files in various formats: EML, MBOX, DBX or MSG. The free OST viewer helps users to View Outlook Emails with Attachments. OST viewer securely Open & View Data from OST file, Sysinfo OST file viewer permits users to open the OST files and view the content i.e. emails and other mailbox data. The free OST viewer is designed in a way so that even novice users can use the tool without any guidance and without damaging their data as well. OST file viewer generates a log file to store the information of the scanning process, the number of files viewed or damaged. The best and prominent features of the OST viewer is there is no requirement of Microsoft Outlook. Free OST Reader Tool is here to Open Corrupt OST File Without Outlook Installation, Run easily on Outlook versions including latest 2019. SysInfoTools OST file viewer makes it possible to open multiple or orphan OST files without MS Outlook or Exchange Server.