プロパティエディタ

If you want to easily reduce the size of an Ost file in Outlook, I suggest the finest program, eSoftTools Ost to Pst converter software. It can be useful if your internet connection is slow or unreliable. Even if your internet connection is down for whatever reason, you may still read and create messages, schedule appointments, and add contacts. With this programme. Administrators can also migrate OST file data directly to the Office365 environment and effectively separate converted PST files.


Know More- reduce the size of OSt file in Outlook

https://www.esofttools.com/blog/how-to-reduce-size-of-ost-file-in-outlook/