Hey, are you looking for a smart solution to convert OST files then you definitely know about the manual method to convert OST to PST is so complicated and lengthy? However, instead of using the manual method, you need to use the professional method to convert it. To execute the professional method all you need to do is to download the Aryson OST to PST converter this advanced utility allows you to convert OST files to PST in bulk with attachment and also allow you to migrate the OST file to the number of email clients like Office 365, Thunderbird, Zoho mail, Gmail, etc. Though, it is available for all the other versions of MS Outlook and Windows. 

A practical guide to converting OST file to Thunderbird

- Download and Install the OST to PST converter in your system.

- Then select the OST file to convert and click on the next button.

- Now, select the OST file/folder to preview and click on the next button. 

- After this select, the file format to convert and set the path to the save button.

- Lastly, click on the convert button to start the conversion process. 

If you want to know more about the other methods to convert OST files then read this article on free methods to convert OST to PST.