every time at startup mendely starts to upload dat for 30 min ( probalbly 600mb, my .pdf files)

every time at startup mendely starts to upload dat for 30 min ( probalbly 600mb, my .pdf files) is that possible because im using both libre and open office. second question: if i word in libre i cant save the file as docx. it there a work around? wbr Ayold Terpstra