The easiest and best way to convert OST files to PST format. The best way to convert OST files to PST files is to use the FixVare OST to PST Converter Software. It easily converts OST files to PST files and doesn't take a long time. It can convert more than one OST file to a PST file, and it doesn't stop at a certain file size. The contacts, emails, notes, messages, and other data in OST are all converted to a PST file. This software looks good and is simple to understand, so anyone can use it. Users can look at OST files and save PST files before they move. Microsoft Outlook 2007 through 2019 can all be used with it. If an OST file has a password, it can be easily changed to an Outlook PST file without losing any data. It also comes with a free sample version that everyone can use to try it out.