If you are also looking for an effective software to import your PST file to Thunderbird, then I would recommend using Aryson PST Migration Tool. The software directly imports the PST file to Gmail, Thunderbird, IMAP, Yahoo, Hotmail, and Opera Mail. It can also convert your PST file to PDF, MSG, TXT, EML, HTML, EMLX, and MBOX. The tool performs its function so effectively that it neither disturbs the folder hierarchy nor alters the data.
Here I mentioned the steps to import the PST file successfully:
Step 1: Download and run the Aryson PST Migration Tool.
Step 2: Click the Add File button and select the PST file.
Step 3: Select the Open button and click Save as Other Format.
Step 4: Click the convert button and select Save as from the Choose Output.
Step 5: Click the Apply button. Now you are done.
