It has to be done through the file properties. If you open the file properties, which can be done through the File menu, then you can changed the properties, including the author.
The standard extension for Excel workbooks is xls for versions up to 2003. Excel 2007 uses xlsx as its extension for workbooks.
No workbooks are open when you first install excel. The first time you use excel, you will have one workbook open.
A workbook in Excel is a collection of worksheets, which may be what you mean. There is no particular name for a collection of workbooks. They are just workbooks or spreadsheet files.
Is it possible to connect two excel workbooks connect data from one to another?
Group of Workbooks
Excel 2007 does use the .xlsx extension for its workbooks.
For workbooks in Excel 2003, the extension .xls is used.
They are spreadsheet files and Excel refers to them as workbooks.
the recent workbooks list
first bind the workbooks together using a workspace file
Yes, all of those can be found in Excel.
workbooks