A colleague wrote a program in excel that runs my data and does a good job.
(I think it's a macro).

Problem is -
I'd like to run this program over night - incrementing to the next file that
needs to be run.
To run the file, I open an excel file and hit a button he labeled "Process
data".

example:
file1 runs, when it's finished, I'd like the program to go to the next file
and run it.
And so on...
Thanks for any help!
Al.