Explanation
The AND function is designed to evaluate multiple logical expressions, and returns TRUE only when all expressions are TRUE.
In this case the we simply compare one range with another with a single logical expression:
B5:D12=F5:H12
The two ranges, B5:B12 and F5:H12 are the same dimensions, 5 rows x 3 columns, each containing 15 cells. The result of this operation is an array of 15 TRUE FALSE values of the same dimensions:
{TRUE,TRUE,TRUE;
TRUE,TRUE,TRUE;
TRUE,TRUE,TRUE;
TRUE,TRUE,TRUE;
TRUE,TRUE,TRUE;
TRUE,TRUE,TRUE;
TRUE,TRUE,TRUE;
TRUE,TRUE,TRUE}
Each TRUE FALSE value is the result of comparing corresponding cells in the two arrays.
The AND function returns TRUE only if all values in the array are TRUE. In all other cases, AND will return FALSE.
Case-sensitive option
The formula above is not case-sensitive. To compare two ranges in a case-sensitive manner, you can use a formula like this:
{=AND(EXACT(range1,range2))}
Here, the EXACT function is used to make sure the test is case-sensitive. Like the formula above, this is an array formula and must be entered with control + shift + enter.
Related formulas
Multiple cells have same value
Multiple cells have same value case sensitive
All cells in range are blank
Related functions
AND Function
The Excel AND function is a logical function used to require more than one condition at the same time. AND returns either TRUE or FALSE. To test if a number in A1 is greater than zero and less than 10, use =AND(A1>0,A1<10). The AND function can be used as the logical test inside the IF...
EXACT Function
The Excel EXACT function compares two text strings, taking into account upper and lower case characters, and returns TRUE if they are the same, and FALSE if not. EXACT is case-sensitive.
