Advanced Excel Formula Development -- 2

I have an Excel workbook that is growing in size and complexity, and I’m hitting the limits of my own formula skills. I need a specialist who can design and implement advanced formulas that can be dropped straight into my existing sheets and will remain robust when I add fresh data later on.

Here’s what is on my wish-list:

• Build powerful lookup and reference solutions that go beyond the usual VLOOKUP—think INDEX-MATCH, XLOOKUP, dynamic arrays, or whatever combination delivers speed and accuracy.
• Introduce statistical or mathematical calculations that summarise key performance figures in a single cell rather than a maze of helper columns.
• Add conditional and logical logic that flags exceptions, triggers alerts, or drives dashboards automatically.

Everything has to work seamlessly with both the data I already have and any new rows, columns, or entire sheets I bolt on in the future. The finished file should arrive clean, documented (brief inline comments are fine), and ready for me to audit.

Once we agree on the structure, I’ll share a sample of the workbook so you can wire formulas directly into realistic data. Delivery is the updated workbook plus a short walkthrough explaining how the logic hangs together and how I can extend it myself later.