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How to Fix Excel Shows _xlfn Error for XLOOKUP
Question details
The user encounters an _xlfn error when attempting to use or view the XLOOKUP function in an Excel workbook.
- Product
- Microsoft Excel
- Device & OS
- not provided
- Scenario
- Opening or calculating a workbook containing the XLOOKUP function.
- Observed behavior
- The workbook displays the _xlfn prefix before the XLOOKUP formula and fails to return the expected calculated results.
Ensure you know your current Excel version, as the XLOOKUP function is natively supported only in Microsoft 365 and Office 2021 or later.
Verify Excel Version and Update
Check if your Excel version supports XLOOKUP and install the latest software updates.
The XLOOKUP function is not backwards compatible. If you open a workbook in Excel 2019 or older, the function will be prefixed with _xlfn and return an error.
Go to File > Account. Under Product Information, verify that your version is either Microsoft 365 or Office 2021 (or newer).
If you have a compatible version, click on Update Options and select Update Now to ensure you have the latest features installed.
Apply Workaround for Version 2308 Bug
Use this quick workaround if XLOOKUP suddenly stops working after a recent Microsoft Office update.
Perform an Office Repair Installation
Repair your Office installation if you have a supported version but Excel still fails to recognize XLOOKUP.
Open and Edit XLOOKUP Formulas Seamlessly with WPS Office
If your current version of Microsoft Excel does not support XLOOKUP, you can use WPS Office as a free and lightweight alternative. WPS Spreadsheet is fully compatible with advanced Excel functions, allowing you to view and edit your data without encountering the _xlfn error.
- 1. Download and Install WPS Office: Visit the official WPS website to download the free office suite and install it on your device.
- 2. Open WPS Spreadsheet: Launch WPS Spreadsheet from your desktop or start menu.
- 3. Load Your Excel File: Click File > Open and select the workbook containing the XLOOKUP formulas to view and edit them without errors.
Frequently Asked Questions
What does the _xlfn prefix mean in Excel?
The _xlfn prefix indicates that the workbook contains a function that is not supported by the version of Excel currently running it. Excel adds this prefix to unsupported functions to preserve the formula structure without breaking the file.
Can I use XLOOKUP in Excel 2019 or older?
No, XLOOKUP is only natively available in Microsoft 365, Office 2021, and newer versions. Older versions will display the _xlfn error. To resolve this, you can upgrade your software or use a free alternative like WPS Office.
How do I fix the _xlfn error without upgrading my software?
If you cannot upgrade your Excel version, you must replace the XLOOKUP formula with compatible functions. Using a combination of VLOOKUP and IFERROR, or combining INDEX and MATCH, can achieve the exact same results in older versions of Excel.
Why did XLOOKUP suddenly stop working after a recent update?
Certain Microsoft Office updates, such as Excel Version 2308, introduced known bugs that temporarily prevent Excel from recognizing XLOOKUP. Closing the application and reopening Excel before loading the file usually serves as a reliable temporary fix.
