you say you had read FE's post about the site move? "We're planning to move the site onto its brand-new servers on Saturday morning"
The 'repeat' in the grey box underneath of box that you type in, is the preview of how your post will look on the actual thread after you have clicked on the Post button. So you can check that the layout is how you want it with line spacing, bold text etc. If you have posted a link you can also check from there that it works ok.
Can't help with the Excel prob, but hopefully someone who knows will come along to help.