The rollover only applies to ambiguous dates (dates without a century). The data looks like 6/15/1999. This is a known bug in the VFP 9.0 bug list that was supposedly corrected with SP2. Such is not the case with us. If we save the file as an Excel workbook, the append works fine. It's only a problem with CSV files.

>>CSV. But when I open the csv file with Excel, that's the format the date fields are in.
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>So Excel recognizes these strings as dates, and interprets (and displays) them so. What's the actual content of your csv file, what are your set("century"), rollover settings?