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You are solving a spreadsheet benchmark task in a real workbook. Objective: Produce the correct final workbook state for the expected answer region. What matters: - Only the values in the expected answer region will be graded. - The workbook is the answer. Instructions: 1. Read the workbook and inspect the relevant data region first. 2. Infer the required result for the provided workbook instance. 3. Write the final value(s) directly into the expected answer region. 4. Do not rely on prose, formulas in your chat response, pseudocode, or VBA as the answer unless the benchmark explicitly requires those to be written into cells. 5. If the natural-language task asks for a general method, formula, or macro, convert that into the concrete result needed for this workbook instance. 6. Keep your final text response short and only summarize the workbook cells you changed. Relevant data region(s): Expected answer region(s): O2:O13 Expected answer sheet(s): Task: How can I modify my Excel formula to return a value based on both month and year, rather than just month? I have a worksheet where I want to pull a specific value into column O based on the given month and year. The current formula only extracts the value for the current year (2023), but I need it to correctly extract the value for January of the previous year (2022) for all rows corresponding to that year. All 2022 rows should have the value for Jan. Can someone provide an updated formula that handles this two-parameter lookup? @INDEX($C2:$N2,MATCH($A2,$C$1:$N$1,0)) Now please apply this formula to my worksheet.