Excel Online is an online version of Microsoft Excel, the popular spreadsheet program. It is part of the Microsoft Office Online suite and allows users to create, edit, and share spreadsheets online, without needing to download or install any software. It includes all the features of the desktop version of Excel, including powerful formulas, charts, and tables. Excel Online also allows users to collaborate in real-time with others, share documents, and access files from anywhere. It is a great tool for managing data and creating complex spreadsheets, and is ideal for both business and personal use.
The only functionality that cannot be replaced is online collaboration, but it is also in the plan.