AIExcel Blog

How to use AI in Excel: browser formula tools, Copilot, add-ins and Power Query compared, with what each can see, what it costs, and where each one fails.

Get an Excel formula generator to produce the right formula first time: what to put in the description, how to verify the output, and when a formula is wrong.

ChatGPT for Excel: the four facts to state in every prompt, patterns that get reliable formulas, and the tasks where it is confidently wrong about spreadsheets.

VLOOKUP vs XLOOKUP vs INDEX MATCH compared on Excel version support, looking left, and what happens to each one when somebody inserts a column.

Excel VBA vs Python for automation, plus the two options people forget. Decided by where the script runs, who maintains it, and what you can install.

The best AI Excel tools compared on sign-up, free limits, price and whether they can see your data. Figures from each vendor's own pricing page, September 2026.

Every Excel error code explained: what #N/A, #REF!, #VALUE!, #NAME? and the rest are actually telling you, the usual cause, and how to fix it without hiding it.