Contact Sheet - remove image sequence numbers

Hi, how can I create a web contact sheet that does not have sequence numbers (1 of 5, 2 of 5, etc)...  It doesn't work for my workflow. For example, if I shoot 100 headshots and create 100 contact sheets for people to view and they make their selection using the sequence numbers rather then the file number I have to open each gallery and find what photo they are referring to. (and yes, I am asking them to provide file name but people don't always follow instructions - plus having two separate numbering systems for one photo is confusing).  

How can I remove the sequence numbering from Contact Sheets?