I use xmind a lot to make notes throughout the year. I go back to them and change them a lot, so I never export it because I'm sure I'll always find something to change or add.
However, at the end of the year I like to export it all to pdf so that I can share them with my other devices like my phone, share with others who may find them useful or look back on them in this format. Sometimes this means manually exporting over 30 mind maps...
I would find it really useful if there was an option to mass export mind maps, for example by selecting them all in the recents tab and then choosing where to save them. Maybe the file name they have as .xmind could be carried forward when saved as a pdf, png or to add to websites...
I hope the xmind team takes this into consideration!