I'm a novice at spreadsheets, so I hope you'll forgive me if I'm asking a super obvious question. Is it possible to use tags in Excel/Google Spreadsheet? I'm creating a spreadsheet to log all the articles and books I'm reading. Say I'm reading "I, Claudius". I want to give it these tags: history, fiction, biography, disability, politics, drama. Then, if I want to display all the articles/books tagged with "politics", I can maybe search/display/pivot with that tag. Maybe preferably, the tags should all be in one cell with each word separated by a comma. If each word were in a cell of its own, it would make the table really messy, I think. I am open to other labelling solutions too. Thanks!