Excel Array Formula Expert

I’m rebuilding several sales-tracking workbooks and need an Excel specialist who can dive straight into complex, array-driven formulas. The files aggregate weekly POS reports from multiple regions, reconcile them with targets, and feed summary sheets that I present to management.

Here’s what I’m after:
• Translate my existing nested formulas into clean, efficient array formulas that update automatically as new sales data is pasted in.
• Eliminate helper columns wherever possible while keeping calculation speed acceptable on a standard laptop.
• Document each formula in-cell with concise comments so the logic is clear for future edits.

I’m not relying on PivotTables or VBA for this phase, but a working knowledge of both will help you understand the overall architecture of the models.

Deliverable: a set of optimised workbooks ready for live sales data, with a short walkthrough (video or annotated PDF) showing how the new array formulas operate and how to extend them when new regions come online.

If this sounds like your kind of spreadsheet challenge, let’s talk and I’ll share a sample dataset so you can estimate the effort.