How many times have you needed to send a document or spreadsheet to someone else for updates at the same time you needed to make updates. Problem solved. Upload it to, share it, and collaborate on the document at the same time. Every user will have a unique color and you will be able to see what others are doing with the document or spreadsheet by watching the colors move on the screen. I had no idea this option was available until last Friday when I was working with a developer and we decided to use Our intention was to edit the spreadsheet in the cloud and take turns. Once we turned on the share option and began working together, it became fun, like a game. I can see myself using this in the future. Try it out here -