Specifies a data range that contains a list you want to use to create a custom list. To import list entries, click in the ...

Specifies a data range that contains a list you want to use to create a custom list. To import list entries, click in the Import List From Cells box, select the data range on the sheet, and then click Import. Each entry in the data range must be in a separate cell. The first character of an entry cannot be a number.

Accepts: data ranges (for example, A1:B10).