How to create text of group in ALV ???

Hi experts,

I have a problem with ALV.

I have 1 internal table :

A0 01 A 10

A0 01 B 20

A0 02 A 20

A0 02 B 30

A1 01 A 5

A1 02 B 10

A3 01 A 10

A3 02 B 20

I want to create 2 group

A0- Description of group A0

01- Description of group 01

A 10

B 20

02- Description of group 02

A 20

B 30

A1- Decription of group A1

01

A 5

02

B 10

.......

Finally, I'll make a subtotal of group 1. And then, I'll have a total of internal table .

When use ALV Grid , I create 2 group but I cant take text of group 1 and group 2 as layout above.

Because layout is like ALV Tree. But I cant use ALV Tree because I need convert into excel file .

Who can help me to solve this problem?

Thanks a lot.