worksheetfunction.vlookup doesn't work for me.

Here is a simiplied version of your code, You dont need error to check it you can do it by other way which is this plus your coding was only looking for apples not for any other value...
Saurabh...

Sub classify()
    Dim xrow As Integer
    
    Dim TableThings As Variant
 
 
 
    For xrow = 4 To 8
        If Application.WorksheetFunction.CountIf(Range("TableThings"), Cells(xrow, 1).Value) > 0 Then
            Cells(xrow, 2) = "Match"
 
 
        Else
            Cells(xrow, 2) = "No Match"
 
        End If
 
 
 
    Next xrow
 
 
 
 
End Sub

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And if you want to do by that way only, as in vlookup then here is the code...
Saurabh...

Sub classify()
    Dim xrow As Integer
    Dim xcol As Integer
    Dim junk As Variant
    Dim TableThings As Variant
 
 
 
    For xrow = 4 To 8
  On Error Resume Next
    junk = WorksheetFunction.VLookup(Cells(xrow, 1).Value, Range("TableThings"), 1, False)
    If Err.Number <> 1004 Then
    Cells(xrow, 2) = "Match"
    Else
    
 
    Cells(xrow, 2) = "No Match"
    Err.Clear
    End If
    
 
    
    Next xrow
 
 
 
 
End Sub

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Cousin86,
There are much easier ways to do it, but sticking with the use of VLOOKUP(), it can be done as in the macro below.
There were all sorts of problems with the code you had adopted, not least of which was that you were attempting to reference the 'TableThings' range without defining it in VBA code. However as you had defined it in the worksheet you caould use that like this:
[TableThings]
The other thing you were doing was to test Apple as being present in the VLOOKUP table on every cycle of the macro For / Next loop. Not surprisingly it found it every time!
Next was the problem that you were not defining the worksheet you were wanting it all to happen in By default it's the active sheet - so it's OK if you're in DATA - but nowhere else.
Anyhow I hope it all helps
Patrick

Sub classify()
Dim xrow As Integer
Dim xcol As Integer
Dim junk As Variant
    
With Sheets("DATA")
    For xrow = 4 To 8
        On Error Resume Next
        junk = Application.WorksheetFunction.VLookup(.Cells(xrow, 1), [TableThings], 1, False)
        If junk = .Cells(xrow, 1) Then
            .Cells(xrow, 2) = "Match"
        Else
            .Cells(xrow, 2) = "No Match"
        End If
    Next xrow
End With
 
End Sub

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vlookupProblem-01.xls

I really have learned a lot, not to mention solved my problem.

But could someone explain to me the syntax of the brackets the surround [TableThings].

Thanks so much

It's the equivalent of an Evaluate statement. I generally prefer to use Range("TableThings") but that's personal preference.

As I understand it, and no doubt someone will correct me, by putting a reference within square brackets, tells the compiler that an address is required or perhaps a pointer to an address - I'm not sure which but I'd guess the former. So by putting a defined range name in square brackets it is translated into a range address. It's a simple way to make use of named ranges. If you use something like this:
Sheets("Sheet1").[A1] = 1234
then [A1] is translated into a range address - 'A1' being the man-readable address.

It's not just addresses - it will evaluate most things that Application.Evaluate will - for example, this will also work:
[sum(A1:A10)]
 

Yep, I since seen the help file on Evaluate. It's clear about [] brackets and that they are the equivalent of 'Evaluate'.