It's getting better.... A wee update, after posting this, got an immediate response from there support team, an updated versions seems to have addressed the speed issue, running now, and will update again if all's good... Support has been really good so far! Software is slow, a 2gb tgz file takes over 5hrs to process, the software needs .net 3.5, really in 2019! The labels in the o365 migration window are confusing and make no sense. I'm on try 2 of the migration tons pst file as the first time did not preview correctly, half the data is missing! If it doesn't work this time, I'm going for a refund.

Not really a money back guarantee I paid for the software and it just crashed when I tried to use it - when I asked for support they said they had to 'remotely control' my laptop and download config files - no sane person would let someone they don't know remotely access their laptop and files. They claim a 30 day refund policy, but won't refund if you don't let them take over your computer. Beware.

Watch out for KDE Tools Watch out for KDE Tools They deliver BAD software tha does not work and they try to let you pay more for another version that shold work better. I only had to convert a zimbra tgz file to pst . first i bought a personal license that did not work than i bought a corparate license in totla 238 $ . None of the software worked . And they would not pay me back . They only tried to sell me a enterprice licensce for 999 $ . Rgds Harry

OST to PST converter OST to PST converter allows to open OST file and review it in the KDT software, but after conversion file to PST is useless - cannot be imported to Outlook. Contacted support which is not 24/7 (after a few replies usually disappearing) company proposed remote sessions which brought nothing valuable. A few promises that tool works for 100% and two days of waiting nothing has been delivered. I asked for refund of my money, did not get it. In total - not recommended at all.

Thanks for KDETOOLS Thanks for KDETOOLS, I just purchase full version Outlook PST converter software. It's very helpful which allows me to restore outlook file items & smoothly import data into office 365 account. Thanks & Regards Varun Kumar