1. Prepare a reporting table from related files TASK: Create a working line table with order date and status from an exact order lookup. Record key uniqueness, unmatched count and completed line count. Your method: Your evidence/result: Limitations and next action: 2. Create PivotTables and compatible measures TASK: Build monthly completed value and order-count summaries. State whether you used a distinct count or an order-grain intermediate. Your method: Your evidence/result: Limitations and next action: 3. Reconcile formulas and write a reporting note TASK: Write the grand AOV formula and compare it with the unweighted monthly average. Prepare a short report note with exclusions. Your method: Your evidence/result: Limitations and next action: