Hi John
I do not want to ever open source wbooks if I can possibly avoid it.

They are used once only to extract data and are not used again unless there
are anomalies in the final analysis. Opening and closing wbooks wastes time
if you only need their data and there are so many of them.

Somehow I have to get the real last row BEFORE I begin to extract data
because I need to establish the original record count.

I use ADO for extraction and it works fine. But when I use a SELECT COUNT
(*) to get a record count it gets messed up sometimes because a wbook may
have been saved with an out of line UsedRange.

One wbook I came across showed the last UsedRange call as AF50918 instead of
S98. That produced an original record count of 50917 instead of 97.

I've been through a number of alternatives then came across the method which
I posted. But it doesn't work consistently. It seems ok if the first field
in a closed wbook is numeric - and it reurns N/A if it encounters a text
field - but if the first field is a text field then it throws a wobbler.

If I can get the thing to work correctly I can install formulae on the
hidden wsheet of my Add-in and loop through all the wbooks in the folder and
calculate the number of original records in each.

Geoff

"john" wrote:

Geoff,

Use a helper cell in the closed workbook and add formula like this:

=COUNTA(A:A)