vba Open excel when File is used by another user

Question

This is my current code

Public Sub OpenFiles()
    \'Set LiveDealSheet file path
    \'Check if LiveDealSheet is already open
    LDSP = \"C:\\Users\\DCHEUNG\\De         


        

Answer 1

I would replace all the scripted above with this:

Public Sub OpenFiles()
        On Error GoTo not_open
        Workbooks("C:\Users\DCHEUNG\Desktop\Programing\LiveDealSheet.xlsm").Activate
        Exit Sub
        not_open:
        Workbooks.Open FileName:="C:\Users\DCHEUNG\Desktop\Programing\LiveDealSheet.xlsm", ReadOnly:=True
        Err.Clear
        Resume Next
End Sub