I'm in a team of 3 with a shared dropbox - not my account but I have my own paid subscription so plenty of room in the shared online dropbox space. I am working on iMac with Numbers spreadsheet and Pages word-processing. I don't have Microsoft Office and can't afford it. I can upload my Numbers spreadsheet to the online dropbox space (export as Excel) where we can all access and edit anything. But though my two colleagues can edit the uploaded file, I can't. This is a major problem as I need to access it when travelling. I've tried using Libre Calc and it's the same problem. Can you help?
