Liane Cassavoy is a veteran technology and business journalist. She contributes regularly to PCWorld and has written about business issues and products for Entrepreneur Magazine and other publications. She is the author of two business start-up guides published by Entrepreneur Press.
From your phone or your browser, you can make files accessible to multiple devices, colleagues or family members. Check out these apps for their special talents in sharing or security--but watch out for those subscription fees.
If you must look at a spreadsheet on a smartphone (prepare to squint!), these four free apps could work. Note that paid upgrades offer useful perks, and a fifth app we tried is well worth its small price.