Excel interop prevent showing password dialog

Question

I am writing a program to clean excel files from empty rows and columns, i started from my own question Fastest method to remove Empty rows and Columns From Excel Files usin

Answer 1

Concerning your solution, are you sure that it will not work with anything, that is not the password? Something like this:

Public Function wb_get_workbook(ByVal sFullName As String) As Workbook

    Dim sFile As String
    Dim wbReturn As Workbook

    sFile = Dir(sFullName)

    On Error Resume Next
        Set wbReturn = Workbooks(sFile)

        If wbReturn Is Nothing Then
            Application.AskToUpdateLinks = False
            Set wbReturn = Workbooks.Open(sFullName, , , , "ThisIsDefinitelyAPasswordThatNooneHasUsed681")
        End If
    On Error GoTo 0

    Set wb_get_workbook = wbReturn

End Function

Will also throw an error, if it is password protected, and if it is not, then it would not care about the password you are providing. I am trying in VBA, but in C# you use the Excel Application object, so it should not be different.