OST File Structure - Version 3.6 OST File Structure is beneficial for Outlook, when Exchange becomes does not work proper then use OST file after recovery from Exchange Server and converter into to PST file to get E-mails. If these synchronization problems occur or you have other problems synchronizing between the Exchange Server mailbox and your OST file, you should use the OST Integrity Check Tool. OST to PST Software scan the corrupted (.OST) Offline Storage file and extracts deleted, damaged emails with complete attachments. The software give you three option to save OST emails into PST, EML and MSG file formats. It's efficiently convert email messages in Plain, Text, RTF and HTML format. Try the Demo version FREE of cost on our website. You can order our 2003 OST to PST Software full version only just at $99. More information clicks this link: - http://www.ostfile.co.uk