Visible Edges "Active File" VBA Code

Trying to create a batch file for exporting Visible Edges.

Found all the VBA variable values

estyles into geometry.
                                (default OFF)

        -ED3, -ED2      --- 3D, 2D output file
                                (default 3d)

        -SHOWTEXT       --- Allow text and dimensions to show through.
        -PROCESSTEXT    --- Process text and dimensions like other geometry.
                                (default -PROCESSTEXT)

However there is no variable for Active File as output

See attached screenshot