Hi,
i'm having hard time to do autonumbering on excel. The numbering system is kind of weird but here it is:

row 1: ABC 1.0-1.5
row 2: ABC 1.5-2.0
row 3: ABC 2.0-2.5
row 4: ABC 2.5-3.0
row X: .................... so on.

I dug internet last few days but no success.

Please help me.

Thank you.