如何在vba中打开现有的excel文件？

我想知道如何使用现有用户名打开现有excel文件。e、 g如果用户名输入为

louis

，并且它是一个新用户名，则会创建一个excel文件

louis.xlsx

。然后，如果用户名再次是Louis，我想打开同一个文件，因为它已经存在

我的代码如下：

Dim SourcePath As String = "D:\VisualStudio\JuegoDIF\" + userName + ".xlsx"
Dim SaveDirectory As String = "D:\VisualStudio\JuegoDIF\"

Dim Filename As String = System.IO.Path.GetFileName(SourcePath)
Dim SavePath As String = System.IO.Path.Combine(SaveDirectory, Filename)

If System.IO.File.Exists(SavePath) Then
    'Files exists
              
    'RIGHT HERE IS WHERE I SHOULD WRITE THE IMPLEMENTATION
Else
    'File Don't Exists
    'Creating an Excel File with user information

    Dim oExcel As Object
    Dim oBook As Object
    Dim oSheet As Object

    'Start a new workbook in Excel
    oExcel = CreateObject("Excel.Application")
    oBook = oExcel.Workbooks.Add

    'Add data to cells of the first worksheet in the new workbook
    oSheet = oBook.Worksheets(1)

    oSheet.Range("A1").Value = "Date"
    oSheet.Range("A2").Value = Now
    oSheet.Range("B1").Value = "Category"
    oSheet.Range("C1").Value = "correct"
    oSheet.Range("D1").Value = "answer"
    oSheet.Range("E1").Value = "Time"

    Dim usuario As String
    usuario = UserName

    'Format Cells
    oSheet.Range("A1:E1").Font.Bold = True
    'Save the Workbook and Quit
    oBook.SaveAs ("D:\VisualStudio\JuegoDIF\" + UserName + ".xlsx")
    oExcel.Quit
End If

---

@悉达多我明白了。。。。是的，Vb.Net索引我删除了我上面的评论，因为那是针对VBA的。请参阅：）使用方法

oBook=oExcel.Workbooks.Open（）

@SiddharthRout非常感谢，我要尝试一下