![]() David has written freelance articles on Microsoft Excel and accounting software for over 15 years, and he has served as the technical editor for over 30 books about accounting software. ![]() He is a nationally recognized Microsoft Excel expert, and regularly teaches live webinars on spreadsheets and other topics. He started the firm in 1991 and provides consulting and training services nationwide. Ringstrom, CPA is president and founder of Accounting Advisors, Inc.
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