Open the workbook to be shared and then make any last-minute edits to the file, especially those that are not supported in a shared workbook.
Before turning on file sharing, you may want to save the workbook in a special folder on a network drive to which everyone who is to edit the file has access.
Learn the ins and outs of Windows, be productive with Word and Excel, manage your e-mail and appointments effectively with Outlook, and create dazzling presentations with PowerPoint.