Find and Add a number in a text field

[Guest]

I have a list of activity IDs that I need to add a number or a letter before
a period (.) Here's examples:

Orig Activity ID
1.1.1.2
2.5.8.9
4.5.9.6.7.1.2
10.25.20.20.10.50

I want to find a formula that would put a zero (0) before each period (.)
and a zero after the last number in the field in the activity ID. So after
the formula it would look like this: 10.10.10.20; 20.50.80.90;
40.50.90.60.70.10.20; 100.250.200.200.100.500

Any help would be greatly appreciated.

Thanks.

 

[Bob Umlas]

=SUBSTITUTE(A1,".","0.")&"0"
Bob Umlas
Excel MVP