Microsoft Excel's Data Validation tool lets you add a drop-down list to a cell based on existing data in a column. However, how this works depends on whether the source data is part of a formatted ...

You can shift Cells Down in Excel by right-clicking, clicking and dragging, via the Home tab, using Shift-Click-Drag, Right-click and drag, Inserting copied cells, or by inserting a row. Let us take a ...