Keyword Analysis & Research: why can't i delete a check box in excel

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
why can't i delete a check box in excel	0.53	0.2	9899	37	39
why	1.09	0.6	592	29	3
can't	0.75	0.9	8520	8	5
i	1.93	0.9	933	67	1
delete	1.98	0.3	2674	95	6
a	1.41	0.8	7082	32	1
check	0.65	0.6	2301	16	5
box	1.64	0.8	975	96	3
in	1.33	0.3	107	43	2
excel	1.9	0.9	6950	90	5

Keyword	CPC	PCC	Volume	Score
why can't i delete a check box in excel	0.45	0.9	3080	94