Quip is a 'productivity suite' where you or other users can be together on docs, spreadsheets, task lists, and chat. It is accessed through many devices, such as laptops, phone, or tablets.
It also allows people to work from anywhere, with it's offline and online properties, no plugins and isn't linked with emails, so your inbox doesn't have to get jammed with unnecessary updates about who edits or comments on the document.
How to make a folder:
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How to check the 'history' of a shared document, spreadsheet, checklist
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