cbearden:
Try this and see if it's what you want:
Open your Excel file, then click on TOOLS from the menu, then choose SHARE WORKBOOK, then click on the EDITING tab and put a check by "allow changes by more than one user at the same time. This also allows workbook merging."
By checking this feature you will be able to have the SAME file opened by multiple people, but yet still be able to see then changes by everyone.
If you then want to see a summary of all the changes, then after changes have been made, click on TOOLS, then TRACK CHANGES, then HIGHLIGHT CHANGES. This will show you changes highlighted on the screen, with each person who made changes highlighted with a different color.
Also...you may also check LIST CHANGES ON A NEW SHEET when you choose HIGHLIGHT CHANGES. This will list all the changes on a new worksheet. Please note--this new worksheet (which will be called HISTORY) is temporary, and will disappear when you close the file, even if you save it. (You can, however, recreate it by clicking on TOOLS, then TRACK CHANGES, then HIGHLIGHT CHANGES again.