I need to do a piece of analysis across several worksheets in the same
workbook but in order to do it I need a quick and easy way to pull all of the
information into a new, single sheet (preferably as the first sheet in the
workbook but that bit isn't essential.)

All of the spreadsheets contain the same data structure - so data is held in
columns A thru U, but the number of rows will vary wildly and the number of
sheets in the workbook will change from time to time.

Is there some sort of macro I could produce that would analyse the number of
worksheets and then pull all of the information out of those sheets into a
new one?

Or is that an impossible ask?

Thanks in advance.