I had to add line to open make this work

[Deadline-Dan]

in function open

had to change the line
local file, message = io.open(filename, "r")
to
local filePath = system.pathForFile( filename, path )
local file, message = io.open(filePath, "r")

to get the file to open.

Thanks,
Dan

[geoffleyland]

I think that's a Solar2D function?