You will get an error if Flash Fill cannot find the pattern. The first thing to check is that you're using Flash Fill close to the source data (e.g., in the adjacent cell). For instance, it won't work ...

Microsoft's spreadsheet program can do way more than you might imagine. These are the hacks and tricks you need to know.

With Endex, you can build a full DCF in Excel, including history, projections, and valuation outputs, producing audit ready ...

Learn the difference between Excel COUNT and COUNTA, plus TEXTBEFORE and TEXTAFTER tricks, so you clean text and totals with ...