I have a workbook which has two column like that:

A..............B
Chiris........10
Chiris........20
Chiris........40
Chiris .......50
Chiris .......30
Lui............10
Lui............30
Lui............40
Lui............80

I want to re-arrange this data in a new sheet (not an existing one) like that in two column:

A...........B
Chiris ....10, 20, 40, 50, 30
Lui.........10, 30, 40, 80

Data has more than 10.000 rows and many different names. Is there any way to make this with a macro ?
Thanks..