Hi guys,
Here's the type of data i'm talking about :
<tbody>
Client
Invoice
A
F17XXX
A
F18XXX
B
F18XXX
C
F17XXX
C
F18XXX
C
F18XXX
E
F17XXX
</tbody>
So i know how to use advanced filtering to have an output range that looks like this :
<tbody>
A
B
C
D
</tbody>
But...