Here's what you can do with Spreadsheets:
  • Import and export Excel, .cvs, .txt, and .ods formatted data.
  • Create spreadsheets from scratch.
  • Use formula bar to calculate results
  • Use formatting (change color with rules) to make your data look the way you want. 
  • Create charts and graphs to visually represent your data
  • Invite others to edit or view your spreadsheet (up to 200 viewers/collaborators).
  • Edit spreadsheet online simultaneously with up to 50 collaborators (with built-in chat backchannel to discuss your project).
  • Insert comments on in cells
  • View your spreadsheet's revision history and roll back to any previous version.
  • Publish spreadsheet online to the world as web pages, or embed into your webpage or blog.
  • Download documents to your desktop as Excel, OpenOffice, .cvs, text,  PDF, or HTML zip compressed file.
  • Email your spreadsheet as an attachment.