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excel 2013

Posted on 2016-10-12
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Last Modified: 2016-10-14
I have two columns in excel, one for unique I'd and second total data,  in below example I would like to explain
I'D.   total data
12.     5
14.      60
18.     44

I would like to create 5 rows for I'd 12 with starting from 01.01.2016, 60 rows for I'd 14 with starting date from 01.01.2016, it should look like below
I'd.   date
12.    01.01.2016
12.    01.02.2016
12.    01.03.2016
12.    01.04.2016
12.   01.05.2016

how I can do that, I have many records that I want to create dates for that
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Question by:snhandle
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Norie earned 500 total points
ID: 41841170
If the original data was in columns A and B on the active sheet and started in row 2 this code will put the 'expanded' data in columns D and E.
Sub ExpandData()
Dim arrIn As Variant
Dim arrOut As Variant
Dim I As Long
Dim J As Long
Dim cnt As Long

    arrIn = Range("A2", Range("B" & Rows.Count).End(xlUp)).Value
    
    ReDim arrOut(1 To Application.Sum(Application.Index(arrIn, , 2)), 1 To 2)
    
    cnt = 1
    
    For I = LBound(arrIn) To UBound(arrIn)
        For J = 1 To arrIn(I, 2)
            arrOut(cnt, 1) = arrIn(I, 1)
            arrOut(cnt, 2) = DateSerial(2016, 1, 1) + J - 1
            cnt = cnt + 1
        Next J
    Next I
    
    Range("D1:E1").Value = Array("ID", "Date")
    
    With Range("D2").Resize(UBound(arrOut, 1), UBound(arrOut, 2))
        .Value = arrOut
        .EntireColumn.AutoFit
    End With
    
End Sub

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