When counting unique values in Microsoft Excel, use UNIQUE() as a helper function and avoid more complicated expressions. The TechRepublic article How to create a sorted unique list in an Excel ...

Microsoft Excel's UNIQUE function does exactly as its name suggests—it extracts unique values from an array. In other words, you'll only see each value once in the result, even if it appears multiple ...

Launch Microsoft Excel. Enter data into the spreadsheet or use existing data from your file. Select the cell you want to place the result Enter the formula Press Enter. Launch Microsoft Excel. Enter ...