What does XL stand for?

What does XL mean?

XL	Excel Governmental » NASA
XL	Excel Governmental » Military
XL	Excel Computing » Software
XL	Excel Computing » Texting
XL	Excel Governmental » US Government
XL	Excel Internet » Chat
XL	Extra Large Miscellaneous » Clothes
XL	X L Capital, LTD. Business » NYSE Symbols
XL	Excel Spreadsheet Computing » File Extensions
XL	Xtra Large Community » Sports
XL	X-chromosome Linked Medical » Human Genome
XL	Xtra Low Business » Products
XL	XML Language Computing » Software
XL	Xtended Life Business » Products
XL	eXpanding Limit Academic & Science » Physics
XL	Xtra Limited Business » Products
XL	Xtra Loud Community » Music
XL	Roman Numeral 40 Academic & Science » Mathematics
XL	Xtra Lame Community » Educational
XL	Xtra Load Governmental » Transportation
XL	XML LISP Computing » Software
XL	X'mas Light Business » Products
XL	Xtra Love Internet » Chat
XL	X-axis Linear Academic & Science » Mathematics
XL	Xiao Loong restaurant, San Francisco, California Business » Firms