I don't see an answer to this but I may not be searching for the right terms. I want to save a file opened in Excel to the default template, Book.xltx (see below). On my system that is (weirdly) located in "Word Templates" which I suppose is a default I set in Word 2010. For example, I open a csv file and save as the same filename in xlsx format. How can I automatically apply the default sheet template to the csv when I open it or when I save it?
The Book.xltx template works when I select it from the My Templates menu when I create a new workbook but isn't the default for a blank workbook (another problem I suppose). It names it Book.xltx1 which is also stupid, can I get it to name the new workbook Book.xlsx or similar?