First select a few cells and put a little info or numbers like b1, b2,
b3 now highlight b1 and all the way down as far as you want your
numbering to go, say to cell 150. Select Edit, Fill, Series, Auto
Fill. This should do the trick.
select all of them, If you pull/drag down the cells, by using the little
balck box at the bottom right hand corner of the selected cells, and just
pull down as far as you need.
If you just want Numbers in B1 - B105 (i.e. 1,2,3,4,5,6,7,etc.) then in
cell B1 enter 1 then in B2 enter =B1+1 and then copy and paste as far
as you need to go - then if you want you can get "rid" of the formula -
do a copy and paste special - values.
If you want something like B1, B2, B3, B4, etc. then do the same as
above and then in another column - enter B or what ever text you want
for each cell and then use the CONCATENATE function.