Hi, I tried to create a sheet in Excel that, when I click on a cell changes the background colour from red to orange to green. I really want it for an assessment tool so I would have a list of children down the left, the learning objective at the top and then I can walk around with it on my tablet tapping the cells to change the colour depending on how the children have got on. Adding new rows would be fantastic so you would keep the class together but keep adding new objectives and then print off (export) at report writing time for parents evening. I managed this in Excel (via vba) but I can't get it to work on the tablet and have no idea how to write Android apps. Thanks, the teachers of the world will be very grateful!