With regard to your point about XML import, when the program asked for a save location, I thought it had gone wrong as it hadn't asked for an import file so I bombed out of it then.

As for the percentage stuff, I was indeed wanting the program to display my 5 digit (including decimal point) field and then to display a percentage sign following.

In order to examine the XML file format, I had previously entered one row of data and then exported that. I figured that I could perhaps hack my data to fit that format. All that was before RTFM'ing ;-)