"Overall interface is the only difference." This statement wildly inaccurate and misleading!
There are many substantial differences between Excel 2007 and Excel 2003. Your organization may incur major costs in converting to Excel 2007, especially if you have a large number of spreadsheets that are linked or make references to one another.
The user interface is entirely new. You will likely find it takes you longer to do your work. The "learning curve" is substantial. It is very much like learning a new product. On the other hand, you may find some of the new features valuable after you have learned Excel 2007.
Some features, such as pivot tables, have incompatibilities between the two versions. For example, Microsoft states: "PivotTables in Office Excel 2007 cannot be made interactive in earlier versions of Excel, and Office Excel 2007 does not downgrade the PivotTable version when earlier-version file formats are saved."
If you publish excel tables to the web with the "Save As HTML to publish HTML", know that Excel 2007 makes major changes to this feature. You may have to change the way you work with this feature.
Other features have been removed and are no longer available in Excel 2007.
The official Microsoft answer to your question is located at a link below:
Note that this site provides a marketing answer. As such it is incomplete since it does not present "negative" information or show adverse impacts, such as major costs associated with adopting Excel 2007, may have on your organization.
Another answer is located here Add-ins.com and is also given below.
Note that this site, too, provides a "biased" answer since the site is from a company that sells "add-on" products for Excel 2007. But this site offers a great advantage to you: it has a table which lists specific features of Excel and shows the differences between the two versions and the impact of adopting Excel 2007. This site states that it includes information derived from user postings on news groups.
Microsoft Excel is a worksheet. Microsoft Word is a word processor.
There are no hidden games in Microsoft Excel after Microsoft Excel 2000, so there are none in Microsoft Excel 2003.
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Windows Server 2003 is an operating system. Microsoft Office 2003 is an office suite.
Office 2003 works under windows, the 2008 under mac.
For workbooks in Excel 2003, the extension .xls is used.
There is no car game or any hidden games in Microsoft Excel 2003. Those games are only in earlier versions of Excel.
I have included a link from Microsoft on how to do this.
Microsoft Word does not contain Excel or Powerpoint. The three come as separate applications with versions of Office 2003. So it is Office 2003 that contains Word, Excel and Powerpoint.
yes
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There are 256 Columns and 65536 Rows in Excel 2003.