Outlook OST to PST Converter from KDETools software allows the users to convert normal as well as corrupt OST file into PST file format. You can download the free demo version for the software to check its efficiency and working. It’s a complete professional software that doesn’t require a change of OST files and allows direct converter of data from OST to Outlook PST file. Use the App to bulk export Outlook OST files to PST. A further situation is to use OST to PST Migration Tool that supports to transfer Outlook OST files to PST format. It tool can supports PST, EML, EMLX, vCard, vCal, MSG, and MBOX file you can also split the PST data into smaller bits with the help of this software. I would suggest you try the free demo version of this software.

best ost to pst converter