EtherCalc is a highly useful web-based tool designed for collaborative spreadsheet editing, making it ideal for teamwork and remote cooperation. The platform offers more than just basic document editing; it also supports advanced features such as inserting charts, applying formatting, and sorting data. Additionally, EtherCalc includes functions for performing calculations, creating links, and generating summaries, making it versatile for various tasks. Similar to Google Sheets, EtherCalc allows users to save their data online, enabling multiple individuals to work on the same document in real time. It is also compatible across a wide range of operating systems, including GNU/Linux, FreeBSD, Mac OS X, and Windows, ensuring accessibility for users on different platforms. This makes EtherCalc an excellent choice for teams needing a flexible and open-source alternative for real-time spreadsheet collaboration.