If you want to check the value in one cell if it is blank or empty cell, then you can use IF function in combination with ISBLANK function or logical operator (equal to) in excel.
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Excel IF function check if the cell is blank
Let’s see the generic IF formula with ISBLANK function and Logical operator = as follows:
=IF(ISBLANK(B1),"PASS","FAILED") =IF(B1="","PASS","FAILED")
In the above two IF formulas, it will return “PASS” if Cell B1 is blank, Otherwise returns “FAILED”.
Excel IF function check if the cell is nonblank
If you want to check the value in one cell if it is not blank or not empty cell, then you can use IF function in combination with ISBLANK function or logical operator (not equal to) in excel.
let’s see the generic IF formula with ISBLANK function and Logical operator <> as follows:
=IF(ISBLANK(B1)=FALSE,"PASS","FAILED") =IF(B1<>"","PASS","FAILED")
In the above two IF formulas, it will return “PASS” if Cell B1 is not blank, otherwise returns “FAILED”.
Let’s write a nested if function in combining with AND function and ISBLANK function to achieve the following test criteria.
IF cell A1 is greater than or equal to 10, then add to C1.
If Cell B1 is greather than or equal to 10, then subtract from C1.
If both A1 and b1 are blank cells, then equals to C1.
Based on the above logic, we can write down the following excel nested if formula (statement):
=IF(A1>=0,C1+A1, IF(B1>=0,C1B1, IF(AND(ISBLANK(A1)=TRUE, ISBLANK(B1)=TRUE),C1,"")))
Related Formulas
 Excel IF formula with operator : greater than,less than
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Excel IF Function With Numbers
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Excel IF function with Dates
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Related Functions
 Excel AND function
The Excel AND function returns TRUE if all of arguments are TRUE, and it returns FALSE if any of arguments are FALSE.The syntax of the AND function is as below:= AND (condition1,[condition2],…) …  Excel IF function
The Excel IF function perform a logical test to return one value if the condition is TRUE and return another value if the condition is FALSE….  Excel nested if function
The nested IF function is formed by multiple if statements within one Excel if function. This excel nested if statement makes it possible for a single formula to take multiple actions…  Excel ISBLANK function
The Excel ISBLANK function returns TRUE if the value is blank or null.The syntax of the ISBLANK function is as below:= ISBLANK (value)…
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