Replace confusing cell references with global constants, local variables, and reusable custom functions.
Structured references use table columns instead of cell coordinates, making formulas easier to read, update, and trust.
Stop Excel errors by using these 8 key symbols, like ' to keep leading zeros and ~ to search for literal * or ? characters in data.
ChatGPT can assist with complex Excel formulas, including a VLOOKUP plus IFERROR to return not listed when no match appears.