You haven't told us enough. If the other workbook contains a table, use
Data - Get external data. The process varies a bit with your release of
Excel. You never have to open the workbook, and can refresh the import to
reread the data at any time.

You can also create a link without ever having opened the workbook (though
it's easier if you do).
=[workbookname.xls]'Sheet 1'!A1

Now copy this down and across, and you have the data. Once done, you never
have to reopen the other workbook. A macro could parse the data, if
necessary, put it where you want it, and do any other tasks.

Without knowing more, that's the best I can suggest.
--
Earl Kiosterud
mvpearl omitthisword at verizon period net
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"GrayesGhost" wrote in message
...
If an unopened Excel Workbook only contains a single worksheet, is it
possible to import the data from that worksheet into another Workbook that
is
open, without having to open the other file?