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Set up a shared workbook Click the Review tab. Click Share Workbook in the Changes group. On the Editing tab, click to select the Allow changes by more than one user at the same time.In the Save As dialog box, save the shared workbook on a network location where other users can gain access to it.

Yes, you can copyright your work and sell or distribute it as you see fit without permission and/or royalties to Microsoft. You can't sell Excel itself, but you can sell any workbook or add-in created with Excel.

How to unprotect Excel sheet Right-click the sheet tab, and select Unprotect Sheet? from the context menu. On the Review tab, in the Changes group, click Unprotect Sheet. On the Home tab, in the Cells group, click Format, and select Unprotect Sheet from the drop-down menu.

If you want several users to work in the same Excel workbook simultaneously, you can save the workbook as a shared workbook. Users can then enter data, insert rows and columns, add and change formulas, and change formatting.

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To protect a sheet, select a tab in your Excel workbook, click on the Review tab and choose the Protect Sheet menu option.

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Click Review > Share Workbook. On the Editing tab, select the Allow changes by more than one usercheck box. On the Advanced tab, select the options that you want to use for tracking and updating changes, and then click OK.

Yes, it's 100% legal to create, sell, and distribute your spreadsheets without any type of permission and royalties to Microsoft, Google, Apple, etc.