To manually import an Outlook PST file into Thunderbird, you can use an intermediate process like exporting your PST file to MBOX format through Outlook and then importing the MBOX file into Thunderbird. This method can be complex and may require additional steps to ensure data integrity.

A quicker and more efficient solution is to use BLR PST Converter Software. This tool allows you to directly convert your PST files to MBOX format, which can then be easily imported into Thunderbird. It streamlines the process, ensuring smooth and hassle-free data transfer from Outlook to Thunderbird.

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