How do I share my workbook where other can open it up at the same time and make changes in Excel 2007? Sharing your workbook allows you to share your workbook at the same time with others on your network, and highlights any changes made by others. Showing these changes in colors, with different colors for different users, but only after they save their changes in the Excel workbook on their end, and then you'll click you save button to automatically pull their changes up in front of you. Additionally, when you hover your mouse over the colored border changes made by other users, you'll be able to see the name of person who changed it, the date and time.

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