sql in excel

[Lucas]

I have a excel sheet with 3 columns(a, b, c):

a1 10 01/05/11
a2 20 02/05/11
a3 15 03/05/11
a1 12 02/05/11
a3 11 01/05/11
a1 13 02/05/11
[...]

how can I get something like this using sql?

___01 02 03 [...]
a1 10 25 00
a2 00 20 00
a3 11 00 15
[...]