array1,array2!This function is available for compatibility with Excel 2007 and earlier. Returns the result of an F-test, ...

!array1,array2!!This function is available for compatibility with Excel 2007 and earlier.
Returns the result of an F-test, the two-tailed probability that the variances in Array1 and Array2 are not significantly different!is the first array or range of data and can be numbers or names, arrays, or references that contain numbers (blanks are ignored)!is the second array or range of data and can be numbers or names, arrays, or references that contain numbers (blanks are ignored)!