It normally calls it Book1, but if there were other new workbooks open already, then it could use Book2, Book3 etc.
Yes.
The default amount is 3 in a new workbook but that can be changed through the options in Excel. You can add new woksheets into a workbook at any time.
three
It depends what version you are using. Excel 2013 only has one worksheet by default, but earlier versions had three. Note that you can change the number of sheets when creating a new workbook via Excel options.
By default there are 3 sheets in a new Excel workbook.
In Microsoft Excel, a new workbook will normally have three worksheets.
Excel 2003: The Default is 3, but limited to available computer memory. http://office.microsoft.com/en-us/excel/HP051992911033.aspx
Book1.xls is the default name for a new document in Excel.
Yes. You can add extra worksheets into a workbook. The amount is limited by the memory of your computer. By default, there are always 3 worksheets in a new workbook. It is possible to change the default.
There will always be a default, and if it is not changed, then there will be 3 worksheets in a new workbook.
Yes, when you start Excel in the normal way, you will be presented with a blank workbook. However, you can choose an Excel file from your folders before opening Excel, and if you double click on it, it will start Excel and have that file open when it starts, instead of a blank workbook.
Right-Click on a tab at the bottom of the workbook and insert new sheet.