If multiple users work in the same Microsoft Excel file, you can limit their access to only the ranges where they need to work.

How to Use an Excel Workbook Over a Network. Microsoft Office Excel 2010 workbooks can contain dozens of different spreadsheets, and each one can contain an entire database.

Learn how to share your Excel Workbook across the web with others. You can do all the sharing via cloud apps like OneDrive right from within Excel.