Question

I want to write a byte array to the end of an existing file. How to append byte array to file?

Answer 1

Here is the solution. Just use the following sub and provide the parameters as required:

Parameters description:

FilepathToAppendTo is the filepath you need to append the byte array

Content is your byte array

Private Sub AppendByteToDisk(ByVal FilepathToAppendTo As String, ByRef Content() As Byte)
    Dim s As New System.IO.FileStream(FilepathToAppendTo, System.IO.FileMode.Append, System.IO.FileAccess.Write, System.IO.FileShare.ReadWrite)
    s.Write(Content, 0, Content.Length)
    s.Close()
End Sub