Format userform Text field values

I am working with Excel 2003 UserForm. I want to paste Sheet1.range"A2:A600" values in my userform.txtVal field which is a text box... and the values needs to be pasted in the Sheet1.range B2 in below format
A2.Text, A3.Text..A600.Text ..likeways

Please help.
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Will something like this work ?

Sub cpyrange()
ctr = 2
Do While ctr < 601
    Range("B" & ctr) = Range("A" & ctr)
    ctr = ctr + 1
End Sub

Otherwise attach a sample file to get better idea what exactly you asking for...

suvmitraAuthor Commented:
I want to copy a range say..A1:A25 (any length) --then want to paste in a TextBox field of a Userform (Multy Line is true).
Now when I return to my worksheet I find the cell is looks like as attached.
I want these values in one single cell .. delimitted in comma ... 1,2,3,4 ...

suvmitraAuthor Commented:
The below code is working
 ActiveCell.Offset(0, 14) = Replace(txtInv, Chr(13), ",")

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