Google Spreadsheet tutorial: How to add a Note or Comment
Google Spreadsheets is a free, online spreadsheet tool that I use almost everyday. It can be used for business purposes or organizing personal information. Learn more: https://www.google.com/sheets/about/
Add a "note" to a cell in Google Spreadsheet if you are the only editor of the spreadsheet.
Add a "comment" instead, if you want to collaborate with others who are also working on the spreadsheet.