Month	Quarter	Product Category	Selling unit	Monthly Sales	Quartely sales	commission	Monthly Margin	Quaterly Margin	Quaterly Commission
January	1	4(Travel,Health,Life,Vehicle )	33	155745	568575	70940.75	83204.25	207828.85	355946.15
Feburary	1	5(Travel,Health,Life,Vehicle,Accident)	55	280784		185388.75	93795.25
March	1	5(Travel,Health,Life,Vehicle,Accident)	42	132046		99616.65	30829.35
April	2	5(Travel,Health,Life,Vehicle,Accident)	52	148180	419345	105313.95	41266.05	151808.3	262736.7
May	2	5(Travel,Health,Life,Vehicle,Accident)	58	176290		112534.4	62155.6
June	2	4(Health,Life,Vehicle,Accident)	36	94875		44888.35	48386.65
July	3	4(Health,Life,Vehicle,Accident)	22	109074	329541	49322.3	58151.7	144782.3	179958.7
Augest	3	4(Travel,Health,Life,Accident)	37	96932		79387.2	15944.8
September	3	5(Travel,Health,Life,Vehicle,Accident)	27	123535		51249.2	70685.8
October	4	5(Travel,Health,Life,Vehicle,Accident)	43	87116	355452	80361.15	5154.85	52206.2	298445.8
November	4	4(Travel,Life,Vehicle,Accident)	34	51015		47483.9	1931.1
December	4	5(Travel,Health,Life,Vehicle,Accident)	54	217321		170600.75	45120.25



```prompt


1. i need a excel function that will open a excel file named `D:\_workspace\carousell-comission-playlist\jimmycheung93\task4\_poc\Sales Analysis Monthly & Quart\helloworld.xlsx`
2. check if sheet named `Sales Analysis Monthly & Quart` exist
  2.1 if not exist create a sheet named `Sales Analysis Monthly & Quart`
  2.2 if exist, empty the whole sheet
4. write Month first row as header of table
5. write Quarter first row as header of table
6. write Product Category first row as header of table
7. write Selling unit first row as header of table
8. write Monthly Sales first row as header of table
9. write Quartely sales first row as header of table
10. write commission first row as header of table
11. write Monthly Margin first row as header of table
12. write Quaterly Margin first row as header of table
13. write Quaterly Commission first row as header of table
14. write "January" at "A2"
15. write "Feburary" at "A3"
16. write "March" at "A4"
17. write "April" at "A5"
18. write "May" at "A6"
19. write "June" at "A7"
20. write "July" at "A8"
21. write "Augest" at "A9"
22. write "September" at "A10"
23. write "October" at "A11"
24. write "November" at "A12"
25. write "December" at "A13"

99. then close and save that excel file

thanks
```

```vb
Sub UpdateSalesAnalysisFile()
    Const FILE_PATH As String = "D:\_workspace\carousell-comission-playlist\jimmycheung93\task4\_poc\Sales Analysis Monthly & Quart\helloworld.xlsx"
    Const HEADER_ROW As Long = 1
    Const START_CELL As String = "A2"
    Dim wb As Workbook
    Dim ws As Worksheet
    Dim startCell As Range

    ' Open the workbook
    Set wb = Workbooks.Open(FILE_PATH)

    ' Check if the sheet exists
    On Error Resume Next
    Set ws = wb.Sheets("Sales Analysis Monthly & Quart")
    On Error GoTo 0

    ' If not found, create a new sheet
    If ws Is Nothing Then
        Set ws = wb.Sheets.Add(After:=wb.Sheets(wb.Sheets.Count))
        ws.Name = "Sales Analysis Monthly & Quart"
    Else
        ' Empty the entire sheet
        ws.UsedRange.ClearContents
    End If

    ' Write headers
    With ws.Rows(HEADER_ROW)
        .Cells(1).Value = "Month"
        .Cells(2).Value = "Quarter"
        .Cells(3).Value = "Product Category"
        .Cells(4).Value = "Selling Unit"
        .Cells(5).Value = "Monthly Sales"
        .Cells(6).Value = "Quartely Sales"
        .Cells(7).Value = "Commission"
        .Cells(8).Value = "Monthly Margin"
        .Cells(9).Value = "Quaterly Margin"
        .Cells(10).Value = "Quaterly Commission"
    End With

    ' Write month names
    Set startCell = ws.Range(START_CELL)
    Dim monthNames() As Variant
    monthNames = Array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December")
    Dim i As Long
    For i = LBound(monthNames) To UBound(monthNames)
        startCell.Offset(i, 0).Value = monthNames(i)
    Next i

    ' Save and close the workbook
    wb.Close SaveChanges:=True
End Sub
```



'column
SALES_ANALYSIS_COL_MONTH = "A"
SALES_ANALYSIS_COL_QUARTER = "B"
SALES_ANALYSIS_COL_PRODUCT_CATEGORY = "C"
SALES_ANALYSIS_COL_SELLING_UNIT = "D"
SALES_ANALYSIS_COL_MONTHLY_SALES = "E"
SALES_ANALYSIS_COL_QUARTELY_SALES = "F"
SALES_ANALYSIS_COL_COMMISSION = "G"
SALES_ANALYSIS_COL_MONTHLY_MARGIN = "H"
SALES_ANALYSIS_COL_QUATERLY_MARGIN = "I"
SALES_ANALYSIS_COL_QUATERLY_COMMISSION_ = "J"

'row
SALES_ANALYSIS_ROW_JANUARY = "2"
SALES_ANALYSIS_ROW_FEBURARY = "3"
SALES_ANALYSIS_ROW_MARCH = "4"
SALES_ANALYSIS_ROW_APRIL = "5"
SALES_ANALYSIS_ROW_MAY = "6"
SALES_ANALYSIS_ROW_JUNE = "7"
SALES_ANALYSIS_ROW_JULY = "8"
SALES_ANALYSIS_ROW_AUGEST = "9"
SALES_ANALYSIS_ROW_SEPTEMBER = "10"
SALES_ANALYSIS_ROW_OCTOBER = "11"
SALES_ANALYSIS_ROW_NOVEMBER = "12"
SALES_ANALYSIS_ROW_DECEMBER = "13"