help me with excel formula please

[shaanu]

A B can somebody help with a formula in the B colunm so
that it
1 1 give values added upwards in the A colunm
2 (1+2)
3 (1+2+3)
4 ( 1+2+3+4)
advance thanks

 

[Gary''s Student]

In B1 enter:
=A1
In B2 enter:
=B1+A2 and copy down