If you want to import Google Takeout to Outlook or if you are going to use Google Backup to Outlook then it is necessary to change the format of the Google backup mails in Outlook supported PST. So the solution is Gmail to Outlook Converter. It will help in converting unlimited Gmail mails in Outlook. There are further more options where you can convert mails in other formats liker eml, msg, pdf, etc. Software will work on all versions of Windows OS. The main thing is it will automatically open converted file in Outlook and will support all the versions. Try its free demo version first to be sure about the product.