20)Macro

A macro is a rule or pattern that specifies how a certain input sequence (often a sequence ofcharacters) should be mapped to an output sequence (also often a sequence of characters) according to a defined procedure. 

19)Header Row

In Excel, the row header is the grayish - colored column containing the numbers used to identify each row in the worksheet. The row header is located to the left of column 1 in the worksheet. 

18)Grid

17)Graph

A visual representation of the data dispalyed in a spreadsheet. 

17)Graph

Freeware program for drawing graphs in a coordinate system.

16)Funtion Formula

15)Freeze

lock or freeze rows or columns to keep them in view, or split panes in your worksheet that can scroll separately from each other