The selected cells on the worksheet are conflicting with the List Manager. If you are selecting cells and the selected range ...

The selected cells on the worksheet are conflicting with the List Manager.• If you are selecting cells and the selected range overlaps the List Manager, either select a non-overlapping range or move the List Manager out of the way.• If you are trying to insert cells, make sure that the List Manager is not in the way of shifted cells. Either move the List Manager or insert cells on another part of the worksheet.