[dba-Tech] Excel book.xlt question

Excel bases new workbooks on the template file, book.xlt. My understanding 
is that this file doesn't exist until you create your first workbook. 
However, a number of my blog readers can't find it, even though they are 
actively using Excel.

I have accessed book.xlt a number of times, but I don't recall actually 
creating it the first time -- must users actually created it the first time?

Susan H.