[DoctorOhh]

I am using the save to disk feature with my daughter's ereader. I set the expression thus:

{author_sort}/{series}/{series_index:0>2s} - {title}

and it gives me the following results.

01
02
03
04
05
06
07
08
09
10
11
12
7.50
9.50

I was wondering (if possible) how I can get 2 decimals before and after the decimal point. Like this.

01.00
02.00
03.00
04.00
05.00
06.00
07.00
07.50
08.00
08.00
09.50
10.00
11.00
12.00