Duplicates in the same column are easy to find by sorting, filtering, and using conditional formatting. When none of those are an option, try this simple formula solution.

How to Convert Excel to Text & Set Column Width. Each Microsoft Excel worksheet is broken up into cells. Each cell is part of a column. Excel's myriad formatting tools let you add colors, formulas ...

When you want to fill a column in Excel with a given formula or value, you can do it the old fashioned way (select cells or the column header, CTRL+V to paste) or use can do it the much faster way ...