ExcelToDBF is an open source Add-in for Excel 2007 enabling Excel users to accomplish two kinds of operations: saving an active Worksheet to DBF IV format and changing a DBF file using Excel.
I had a problem where I would attempt to create a DBF file and no file was created, but no error message was generated. I contacted the author who replied, "It can depend on the header of one or more columns. If it corresponds with some special fields of dbf format, the add-in will not work. Try to check and rename if necessary." I had a field named "DB" which I suspect is a restricted name... I renamed this and all the other columns and everything worked ok. The spreadsheet had 100 rows and about 15 columns. UPDATE: The column names DB, FIRST and LAST are in conflict with some special fields of DBF format. If your spreadsheet has columns with any of these names (and there are no doubt others) your attempt to save as DBF will simply fail with no warning or error. When I changed these to DBNAME, FIRSTNAME and LASTNAME the save completed. So other than this little glitch, I would give the add-in 5 stars. For lack of an error message in this case, four stars. Excellent piece of work and really makes up for the lack of DBF functionality in Excel 2007 (oh, Microsoft, how you keep failing us).