Kittens? Puppies? Dilbert? PHB?
A picture or small sample will help people keep ideas in the ballpark
If you're talking about some sort of dashboard, "Excel 2007 Dashboards & Reports For Dummies Mar 2008", has 10 rules at the end. Lot of other information, but this is their Top 10 List
Back in the old days when I had to work for a living, my interface design rule of thumb was to "Make it so easy, a VP could use it"
Ask yourself: "Why is the user sitting down at the keyboard?" and make it easy to answer those kind of questions
So make sure not to over complicate it
This is an interesting read
https://www.joelonsoftware.com/2000/...ing-a-product/
Edit - I forgot -- if you can use pivot tables and pivot charts, using slicers can work really well and make the spreadsheet look nice, easy to operate, and confidence enhancing