LineLen
(number) The maximum line length for the base64-encoded text, in columns. (Use 0 for no line breaks.) The default value is 76.
Re t u r n s
(string) The contents of the specified binary file as a base64-encoded string. If the data cannot be encoded or some other error occurs, an empty string ("") is returned. You can use Application.GetLastError to determine whether this action failed, and why.