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# How to Use the Excel IFNA Function

We can use the excel IFNA function to generate a custom result when a formula ought to display the #N/A error. This function doesn’t detect other errors apart from the #N/A error. The steps below will walk through the process.

Figure 1: How to Use the Excel IFNA Function

## Formula

`=IFNA(VLOOKUP(D4,A4:B10,2,FALSE),"Not applicable")`

## Setting up the Data

• We will set up the data by inputting the SUBJECTS for a student in Column A
• Column B contains the scores for each subject
• Column E is where we want the formula to return the result. We will use a VLOOKUP formula to check for the scores of the subjects if they are in the range (A4:B10)

Figure 2: Setting up the Data

## Excel IFNA Function

• We will click on Cell E4
• We will insert the formula below into the cell
• `=IFNA(VLOOKUP(D4,A4:B10,2,FALSE),"Not applicable")`
• We will press the enter key

Figure 3: Result of VLOOKUP for Cell E4

• We will click on Cell E4 again
• We will double-click on the fill handle (the small plus sign at the bottom right of Cell E4) and drag down to copy the formula into the other cells

Figure 4: Result of Using the IFNA function

## Without the IFNA Function

Without the IFNA Function, the formula for VLOOKUP is: `=VLOOKUP(D4,A4:B10,2,FALSE)`. If we clear the data from Cell E4 to Cell E6 where our result is and input the formula below, our result will be like figure 5.

Formula: `=VLOOKUP(D4,A4:B10,2,FALSE)`

Figure 5: Without the IFNA Function

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