This is simple
just type =lorem() and press Enter (include that =)
you can specify the line numbers and paragraphs in that like
this will create 2 paragraphs with 5 sentences or 5 lines.
You can try =rand(2,3) which will generate the sentence “quick brown fox …” in old versions of Microsoft word and in 2007 it is displaying text from the word help i think. Both will display in same method. 3 lines or 3 sentences and 2 paragraphs.