file format or file extension not valid excel

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
file format or file extension not valid excel	0.29	0.5	9270	82	45
file	0.46	0.7	8700	81	4
format	0.18	0.9	3894	24	6
or	0.94	0.2	5151	42	2
file	0.12	0.9	150	79	4
extension	0.71	0.7	3909	23	9
not	1.78	0.4	293	17	3
valid	0.63	0.6	6569	23	5
excel	0.78	0.2	8047	70	5

Keyword	CPC	PCC	Volume	Score
file format or file extension not valid excel	0.48	0.4	2182	68
file format is not valid excel xls	0.12	1	2243	79
excel error file extension not valid	0.44	0.6	6834	21
excel file format is not valid	0.9	0.8	3970	37
microsoft excel file format is not valid	1.4	0.3	737	23
excel error file format is not valid	0.69	0.9	1205	18
excel file extenstion not valid	0.66	0.2	308	54
excel file format is not valid error	1.54	0.7	6909	33
excel format or file extension not valid	1.66	0.4	7018	52
excel format is not valid	1.72	0.7	1844	12
xlsx file format is not valid	1.97	0.7	5519	95
fix excel file format not valid	1.98	0.7	518	37
can't open excel file format not valid	0.87	1	43	31
excel format extension not valid	1.2	0.2	342	7
excel file format cannot	1.17	1	2951	34