I have read that when I convert an .xls workbook to .xlsx, Excel will
automatically delete the older version. It is not working that way for me;
the old .xls file is still there in the file directory, along with the newer
..xlsx version, even after I €œrefresh€� Windows explorer. Any suggestions as to
why the old .xls files are not being deleted automatically post-conversion; I
have thousands of older files and would hate to have to delete each one of
them manually when I convert a workbook to Excel 2007. I believe the older
files were mostly created in Excel 2000. Oddly enough the automatic deletion
is working fine with my Word 2007 after I convert a .doc file to .docx.
Thanks in advance for any help you can give me.

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Geoff