Help with report

[ChrisH]

I have some data in the following format:

Fred Flintstone,445553454,47634565
Wilma Flintstone,74857346,27576847
Barney Rubble,73487346,27576435

I need to convert this data into a report with the user's name and 
difference between the 2 numbers.

Can someone recommend a good way to do this?

BTW, it would be best if I can have it up and running by tomorrow. Also, 
html would be the preferred format, but not required.

Any help would be greatly appreciated!!