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- Declare the necessary variables and open the CSV file:
Formula:
Dim excel As Microsoft.Office.Interop.Excel.Application
Dim wb As Microsoft.Office.Interop.Excel.Workbook
Dim ws As Microsoft.Office.Interop.Excel.Worksheet
Dim range As Microsoft.Office.Interop.Excel.Range
excel = New Microsoft.Office.Interop.Excel.Application
wb = excel.Workbooks.Open(FileName)
ws = wb.ActiveSheet
range = ws.Range("A:A")
- Set the column width:
Formula:
range.ColumnWidth = 15
- Set the date format:
Formula:
range.NumberFormat = "m/d/yyyy"
- Save the changes to the workbook, close it, and quit Excel:
Formula:
wb.Save()
wb.Close()
excel.Quit()
Note that this code assumes that the CSV file has been opened in Excel and saved as an Excel workbook (.xlsx). If you need to open and format a true CSV file, you may need to use a different approach.