How to spell XLS correctly?

If someone mistakenly spells "xls" as "xsl", a possible suggestion could be to switch the position of the letters to create the correct spelling of "xls". Another suggestion could be to use auto-correct or spell-check features in typing software to catch the error and provide the correct spelling.

• LS
• XES I collect Xes from museums around the world.
• XIS I am interested in running for XIS president.
• xl I wear an XL t-shirt.
• XS I can wear an XS in some brands, but not all.

Contempories

• contemporaneous
• contemporaries
• contemporary
• contemptuous
• cotemporaries