Creating a test Cube in SAP BW

Hi every one,

i have a funny question but i need to ask. I am new with SAP. im trying to create a test Cube in SAP BW with my test Exel Data. But i wonder if my Test Cube will affect our current BW Data?.

is my Test Cube is independent from the other Cube or not?

Because i am afraid of making any Error to our current Cube.

Thanks!