Maybe you can suggest to me how I would write the description better:
This script is a raw utility that I use to merge "information" and "data" sheets from different Excel workbooks. The basic syntax is as follows:
xlsmerge -s -o results-%Y%m%d.xls info.xls:Information query_results.x
Maybe, if your operating system does not execute Perl programs directly, you want to use the following line:
perl -w xlsmerge -s -o results-%Y%m%d.xls info.xls:Information query_r
You don't tell us what you've tried and what problems you encountered, so it's hard to advise you further.