If you are searching for a tool that easily fixes the error OST file missing Outlook 2016 with all important data. So I suggest downloading the most popular and powerful conversion tool that's named
SysInspire OST to PST Converter software. Because this tool easily resolves any errors in Outlook OST files without losing any important data. It also provides technical support 24/7 with emails and chats to understand any misunderstanding related to this tool.
Know more:- https://www.sysinspire.com/blog/fix-error-ost-file-missing-outlook-2016/