This function returns the number of number of cells that contain numbers, text, or logical values.
COUNTA(value1,value2,...)
COUNTA(array)
The arguments may be separate values or an array of values. Up to 255 arguments of individual cells may be included.
This function counts the number of non-empty cells in the specified cell range.
This function differs from COUNT because it includes text or logical values as well as numbers.
Accepts cell references. Returns numeric data.
COUNTA(B2,D2,E4,E5,E6)
COUNTA(A1:G5)
COUNTA(R6C3:R9C4)