OST Open File Tool - Version 3.2.9 OST Open File Tool is all you need to protect your mailbox in MS Outlook format and convert the output information from OST to PST extension. This application runs on all supported configurations and guarantees the highest efficiency of data recovery and file conversion. The success of OST Open File Tool execution does not depend on the PC configuration in use, this program works with any version of MS Outlook and parses even very large files of corresponding format. This application provides faster file conversion service on any computer, but besides the conversion of corresponding documents this software allows opening even corrupted files of OST format. During the process of file conversion OST Open File Tool retrieves emails, contacts, attachments and other objects from any version of OST file, including very large mailboxes. Since all data recovery activities are performed offline, there is no need to worry about the privacy of your personal information, it is very important when you work with business critical files or any other valuable data. This application runs on