I also have an 06 Holiday Rambler Endeavor
Seems the previous owner dumped a cup of coffee on the table and stsined two shades.
After posting on this fourm I was told to go get a spray bottle of Oxiclean and after a couple of treatments the stains were gone, being the sceptic I am I tried it in some very stained dinning chairs and was very impresed.
Don't pray for a blessing--Pray to be a blessing.
2006 Holiday Rambler Endavor 40 footer