XLOOKUP is available only in certain versions of Excel. Here are the steps to ensure you have access to XLOOKUP:
Ensure You Have the Right Version of Excel
XLOOKUP is available in:
- Microsoft 365
Excel 2019 (Windows and Mac)- Excel for the Web
If you have an older version of Excel (such as Excel 2016 or earlier), XLOOKUP will not be available.
To access XLOOKUP, you may need to upgrade to a version that supports it.
Happy Excel-ing! 
Thanks for the information, I have the same link in my message but I didn't really look it up 
.
Until now I had it in my head that it was also possible in Excel 2019, but now I've been proven wrong .
Thanks again for the correction.