Increment data when importing

[themluis]

So the code that I have done is working importing a specific range of values and pasting perfectly in the target folder.

But in my company there exists a need to import the data from that file but to always increment. For example: the file where I extract the data is from week 1 and the info is in the main file but next week the file from week 2 is out and needs to be imported when I import the data it pastes the data over the old one.

But the problem is that I also need to keep the old data in the main file too. So It should increment down below. to demonstrate this I will use some numbers.

Data Imported from first week source workbook: 1,1,1,1
Data pasted In target workbook: 1,1,1,1

Data Imported from second week source workbook: 2,2,2,2
Data Pasted in target workbook: 2,2,2,2

Result wanted data imported from both source WB to target WB: 1,1,1,1,2,2,2,2

Sub ImportData()
    Application.ScreenUpdating = False
    Dim Path As String, Lstrw As Long
    Dim SourceWb As Workbook
    Dim TargetWb As Workbook
    
    Path = "C:\Users\DZPH8SH\Desktop\Status 496 800 semana 12 2015.xls"    'Change this to your company workbook path
    Set SourceWb = Workbooks.Open(Path)
    Set TargetWb = ThisWorkbook
    
    Dim n As Integer, targetRow As Long
    targetRow = 3
    
    With SourceWb.Sheets(1)
        Lstrw = .Cells.Find(What:="*", SearchOrder:=xlRows, SearchDirection:=xlPrevious, LookIn:=xlValues).Row
        .Range("M1:M" & Lstrw).AutoFilter Field:=1, Criteria1:="496"
        .Application.Union(.Range("D2:D" & Lstrw), .Range("F2:F" & Lstrw), .Range("I2:I" & Lstrw), .Range("M2:M" & Lstrw)).Copy
        TargetWb.Sheets(7).Range("A" & targetRow).PasteSpecial xlPasteValues
        .ShowAllData
    End With

    With SourceWb.Sheets(2)
        Lstrw = .Cells.Find(What:="*", SearchOrder:=xlRows, SearchDirection:=xlPrevious, LookIn:=xlValues).Row
        .Application.Union(.Range("D2:D" & Lstrw), .Range("F2:F" & Lstrw), .Range("I2:I" & Lstrw), .Range("M2:M" & Lstrw)).Copy
        TargetWb.Sheets(7).Cells(TargetWb.Sheets(7).Rows.Count,"A").End(xlUp)(2).PasteSpecial xlPasteValues
    End With 
   
    SourceWb.Close savechanges:=False
    Application.ScreenUpdating = True
    
End Sub

Can you try adding the code in my existing code.