Save and Save As in Excel 07

Save

Save and Save as will act the same the first time that you save a brand new workbook. After that the Save button will overwrite the existing document without asking if you wish to do so.

Save As

Will allow you to save a copy of the workbook anywhere you want to on your hard drive or network.
Excel Workbook: saves the workbook in Microsoft Office 07 format. No previous version of Office can open this without downloading a patch.
Excel Macro Enabled Workbook: saves a Macro Enabled workbook in Microsoft Office 07 format. We will discuss what Macros are later.
Excel Binary Workbook:
Excel 97-2003 Workbook: saves a copy of the workbook in a format that Microsoft Office 97 to 03 can open. This is a good format if you have friends that do not have Microsoft Office 07.
The Adobe PDF choice is on my system because I also have Adobe CS4 installed.
OpenDocument Spreadsheet: saves a file that can be opened with Open Office, this is a freeware version of Office and can be downloaded at http://www.openoffice.org/ .
PDF or XPS: will allow you to save as an Adobe PDF file or an XPS file. The PDF file is more commonly used for downloads on the internet as they are smaller in size than an Office file. They also have the distinction of being a read only file so it is harder for people to modify this type of document. You may have to download the patch for this if you have not used this option yet. Of you click on this option it will automatically determine if you have used it before or if the patch has been installed. If the patch has not been installed it will send you to the download site. Save the patch to your computer and install it, and now you are ready to publish this type of file.

Hint: If you want to modify the file in the future remember to save it as an Office Document as well. If you do not then you will have to recreate this document.