IFERROR

 The IFERROR function in Excel is used to handle errors in formulas by returning a specified value if the formula results in an error. Below are 10 expanded examples of how to use IFERROR with data and formulas:

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1. Basic IFERROR Example

Formula:
=IFERROR(A2/B2, "Error in calculation")
Explanation:
If dividing A2 by B2 results in an error (e.g., division by zero), the formula returns "Error in calculation". Otherwise, it returns the result of the division.

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2. Handling VLOOKUP Errors

Formula:
=IFERROR(VLOOKUP(D2, A2:B10, 2, FALSE), "Not Found")
Explanation:
If the VLOOKUP function cannot find the value in D2 within the range A2:B10, it returns "Not Found" instead of an error.

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3. Combining IFERROR with SUM

Formula:
=IFERROR(SUM(A2:A10)/B2, "Invalid Calculation")
Explanation:
If dividing the sum of A2:A10 by B2 results in an error, the formula returns "Invalid Calculation".

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4. IFERROR with INDEX-MATCH

Formula:
=IFERROR(INDEX(B2:B10, MATCH(D2, A2:A10, 0)), "No Match")
Explanation:
If the INDEX-MATCH combination fails to find a match, it returns "No Match".

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5. Handling Errors in Array Formulas

Formula:
=IFERROR(A2:A10/B2:B10, "Error in Array")
Explanation:
If any division in the array A2:A10/B2:B10 results in an error, the formula returns "Error in Array".

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6. IFERROR with Text Functions

Formula:
=IFERROR(LEFT(A2, FIND(" ", A2)-1), "No Space Found")
Explanation:
If the FIND function cannot locate a space in A2, the formula returns "No Space Found".

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7. IFERROR with DATE Calculations

Formula:
=IFERROR(DATE(YEAR(A2), MONTH(A2)+1, DAY(A2)), "Invalid Date")
Explanation:
If adding one month to the date in A2 results in an invalid date, the formula returns "Invalid Date".

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8. IFERROR with FILTER Function

Formula:
=IFERROR(FILTER(A2:A10, B2:B10="Yes"), "No Data Found")
Explanation:
If the FILTER function returns no data, the formula returns "No Data Found".

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9. IFERROR with AVERAGE

Formula:
=IFERROR(AVERAGE(A2:A10), "No Valid Data")
Explanation:
If the AVERAGE function cannot calculate the average (e.g., due to non-numeric data), it returns "No Valid Data".

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10. IFERROR with CONCATENATE

Formula:
=IFERROR(CONCATENATE(A2, " - ", B2), "Concatenation Error")
Explanation:
If concatenating A2 and B2 results in an error, the formula returns "Concatenation Error".

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Key Notes:

• IFERROR is useful for making spreadsheets cleaner and more user-friendly by avoiding error messages like #DIV/0!, #VALUE!, #N/A, etc.

• Always specify a meaningful value or message to return when an error occurs.

• Combine IFERROR with other functions to handle complex scenarios.