Fix and explain Excel formulas and macros with ChatGPT
Describe your sheet and goal, get a working formula or VBA macro, and paste errors back until it works.
Oct 25, 2026
My sheet [sheet name] has columns [A: header, B: header, ...]. Sample row: [values]. I want [desired result] in column [X]. Write the Excel formula, explain each part, and tell me what could break it.
How to use it
1. Describe the sheet names, headers and a sample row 2. State the exact result you want 3. Ask for the formula or macro with an explanation 4. Test it on a copy of the file 5. Paste any error message back for a fix 6. Save the working version and note what it does
Result
Working formulas and macros, usually within 2 to 3 tries. Example: Input: "Look up price from Prices sheet by SKU, return 0 if missing". Output: =IFERROR(INDEX(Prices!C:C,MATCH(A2,Prices!A:A,0)),0) with an explanation.
Tips and gotchas
Human review: Test on a copy, never the live workbook. Pitfall: First VBA attempt often references properties that do not exist. Privacy: Test macros on a copy; never paste confidential figures you do not need. Best for: Accountants, analysts, office staff (Beginner). Time saved basis: Estimate.
synder.com
https://synder.com/blog/how-to-power-your-accounting-practice-with-chatgpt/