If you need to export Windows Live Mail to Thunderbird, then must download eSoftTools Windows Live Mail Converter Software. Mostly users choose this software because they know its come with multi function solution. This software has an email filtering option where you just need to select date and range and you will get only those that you have requirement. its offers you to convert 8+ files formats for windows live mail. Install the application now and check out its free demo version now.

For more info - Export Windows Live Mail to Thunderbird