My knowledge of computer's is limited but i manage, but lately i have been
creating some tables involving changing font size,it starts on 11 and if ii increase this to 18 it will print one word and go back to 11 where am i going wrong
If you want all of the document to be size 18 then you need to select all of it before making the change..
Ctrl + A will do this then change the font size to what you want.