The most excellent Thunderbird to Outlook converter software on the online internet market is eSoftTools Thunderbird to PST ConverterSoftware. It can provide the user with the most suitable techniques to convert Thunderbird to Outlook PST files. It can convert individual and multiple Thunderbird mailboxes to PST files without losing any collected data from Thunderbird. There is no constraint related to file size for Thunderbird Mbox conversion. This software operates very well with all versions of Windows up to 10.