The Yucca Valley library will offer a free computer class in Microsoft Excel. The courses will be held Tuesdays through September 20 from 4 to 5 p.m. at the Yucca Valley library. Library staff will teach the course using Skillsoft, a database available to any resident with a San Bernardino County library card. Courses will include lessons and practice activities. A limited number of laptops will be available for checkout during the course. For more information, call the Yucca Valley library at 760-228-5455.