Keyword Analysis & Research: why am i not able to merge cells in excel

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
why am i not able to merge cells in excel	0.66	0.7	3230	6	41
why	0.06	0.8	5582	86	3
am	0.34	0.3	3358	86	2
i	1.01	0.8	4754	86	1
not	1.74	0.2	6360	83	3
able	1.47	1	5045	45	4
to	0.86	0.2	1953	28	2
merge	1.74	0.5	1778	96	5
cells	1.28	0.2	9606	16	5
in	1.62	0.3	2128	58	2
excel	0.73	0.7	7023	82	5

Keyword	CPC	PCC	Volume	Score
why am i not able to merge cells in excel	1.37	1	5803	25