Question

how can i enter formual in MS excel ?

Answer 1

open excel go to the formula box on top of the spreadsheet and enter your formula or go the cell and start with "="

eg
=sum(d1:g5:)

Answer 2

to enter formula in ms excel follow this steps ;- 
   - click on the cell where you want to use formula .
   - type formula in formula box such as - C2 * D2 .
  - then press enter