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ExcelAndFunction
The Excel AND Function
Related Function:
OR Function
Basic Description
The Excel AND function tests a number of supplied conditions and returns a result of:
 TRUE if ALL of the conditions evaluate to TRUE
or
 FALSE otherwise (i.e. if ANY of the conditions evaluate to FALSE)
The syntax of the function is :
AND( logical_test1, [logical_test2], ... )
where the arguments, logical_test1, [logical_test2], etc, are conditions that evaluate to either TRUE or FALSE.
Notes:

In Excel 2007 and later versions of Excel, you can enter up to 255 logical_test arguments to the Excel And function.
However, in Excel 2003, the function can only handle up to 30 arguments.

If the logical_tests evaluate to numbers, instead of logical values, the value zero evaluates to FALSE
and all nonzero values are treated as the logical value TRUE.
Excel And Function Examples
The following spreadsheet shows three examples of the Excel And function, with different conditions.
Formulas:

A 
B 
C 
1 
5 
10 
=AND( A1>0, A1<B1 ) 
2 
5 
10 
=AND( A2>0, A2<B2, B2>12 ) 
3 
5 
10 
=AND( A3<0, A3>B3, B3>12 ) 

Results:

A 
B 
C 
1 
5 
10 
TRUE 
2 
5 
10 
FALSE 
3 
5 
10 
FALSE 

Note that, in the above example spreadsheet:

the function in cell C1 evaluates to TRUE, as BOTH of the supplied conditions are TRUE

the function in cell C2 evaluates to FALSE, as the third condition, B2>12, is FALSE

the function in cell C3 evaluates to FALSE, as ALL of the supplied conditions are FALSE
Further examples of the Excel And function can be found on the
Microsoft Office website.
And Function Common Error
If you get an error from the Excel And Function, this is likely to be the #VALUE! error:
Common Error
#VALUE!



Occurs if any of the supplied logical_test arguments are text values
