I'm a down right dirty data person myself that can present reports for the best of the C-level folk. I've provided things like this for ages. That said, once you get into fancy stuff like "Excel", that's outside of my league in any language I write in (four fluently, several more on an as-needed basis).

Any chance you can show a snip of your data, along with a sample of how you want the output to look like?

Putting data into a spreadsheet is possible in any language. Where Perl excels (no pun intended) is compiling and preparing the data in an extremely efficient, portable, explainable, repeatable and most importantly reliable method where real experts can validate it. Not a bunch of people who just graduated. Not people who are 20 years or so old who think they know because their textbooks say. Perl experts *know* what they're talking about, because we've been at this stuff for decades.

Again, post example data and example desired output (in <code></code> tags of course), and we'll see.