The first step is to download and install the software on your system.
![download ost to pst converter](../../images/screenshot/ost-to-pst/download-ost-to-pst-converter.webp)
Now, click on the Browse button and add OST file.
![gaintools ost to pst converter](../../images/screenshot/ost-to-pst/gaintools-ost-to-pst-converter.webp)
Once OST file is scanned, get a complete preview of OST file and select items to export.
![open ost](../../images/screenshot/ost-to-pst/open-ost.webp)
Select the PST file format in which you want to export OST file.
![select-pst-file](../../images/screenshot/ost-to-pst/select-pst-file.webp)
Choose an output location to save the converted PST files.
![selection of output format](../../images/screenshot/ost-to-pst/selection-of-output-format.webp)
In the end, hit the Convert Now button to start the process of conversion.
![export ost](../../images/screenshot/ost-to-pst/export-ost.webp)