BadBlue Excel to web spreadsheet sharing helps you in editing, viewing and updating your workbook files with out the need to install any software applications on your personal computer. The web spreadsheet allows you to recalculate formulas, cell-by-cell security & create charts and is automatically updated to the latest version without the need for you to update.

Security Installation Features : A secured version which offers security to Cell levels and you can control who can edit and view which cells. All the edited data is being stored in the original format in real time. You have a complete guide for setting up this turnkey solution using the steps of which you can set it up in couple minutes.

Cost : The Excel web sharing generally starts at 59$ per licence and you can grab a free copy of the same here