The FISHERINV function returns the inverse of the Fisher transformation. Use this transformation when analyzing correlations between ranges or arrays of data. If y = FISHER(x), then FISHERINV(y) = x.
Syntax:= FISHERINV(y)
The FISHERINV function syntax has the following arguments:
 Y Required. The value for which you want to perform the inverse of the transformation.
Example: Let’s look at some Excel FISHERINV function examples and explore how to use the FISHERINV function as a worksheet function in Microsoft Excel:
Syntax: =FISHERINV(A2)
Result: 0.749999967
Based on the Excel spreadsheet above, the following FISHERINV examples would return:
Syntax: =FISHERINV(A3)
Result: 0.84828364
Syntax: =FISHERINV(A4)
Result: 0.578363413
Syntax: =FISHERINV(A5)
Result: 0.998177898
Syntax: =FISHERINV(A6)
Result: 0.635148952
Syntax: =FISHERINV(A7)
Result: 0.852477704
Note:
 If y is nonnumeric, FISHERINV returns the #VALUE! error value.

The equation for the inverse of the Fisher transformation is: