Wi-Fi networks made by Xirrus Inc. have been chosen for use in medical and corporate conferences produced by Advance Concepts, the company announced Tuesday. The equipment from Westlake Village-based Xirrus was recently used by Advance Concepts at a medical conference in Florida. The Xirrus Wi-Fi Array handled more than 200 users who downloaded more than 20,000 filed during the six-day event, said John DiGiovanni, director of marketing, in a statement. “With an average file size of 1MB that translated into a huge amount of traffic highlighting the scalability and resiliency of the Array,” DiGiovanni said. Advance Concepts went with Xirrus because its product was easy to set up and allowed hundreds of doctors to download files quickly and with minimal assistance, said President Phil Joseph, in a statement.