American Heritage Dictionary
(3)
Century Dictionary
(3)
GNU Webster's 1913
(2)
WordNet
(1)
Elsewhere on the web
Golf is a truly amazing game because for you to excel, that is precisely what you need.— Find Free Articles - ArticlesBase
At this point, we have to do a couple reports, export to excel and match / merge them in excel which is time consuming.— Salesforce IdeaExchange
£25,000 - £30,000 + Excellent Benefits. strong it skills - powerpoint, excel, and database ….— Top Stories - Google News
(THIS AUDIO IS EMBARGOED UNTIL 6 a.m. Eastern time) strong it skills - powerpoint, excel, and database ….— Top Stories - Google News
Overcoming disadvantages may make a few individual excel, armed with skills that the privileged don't possess.— gladwell.com

American Heritage Dictionary (1)
Century Dictionary (1)
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You can expect to see this word about twice a week.