On Thu, 28 May 2009 01:33:01 -0700, The Fool on the Hill
wrote:

Hello Excel(lent) users,

I want to count the hours that are spent by a particular team on a
particular project. Could you please help me ?

In Column C I have the ID of the project
In Column H I have the ID of the team
The Hours I have in Column J

Could you give me a formula to help me solve this ?

Thank you very much !!

Assuming that you will have multiple lines per team/project, you could use a
Pivot Table.

Do something like
Drag teams to Rows
Drag projects to Columns
Drag hours to the Data or Value area
--ron