Are they date fields?

>Hey Gurus....
>
>Got any FoxFire and Excel gurus here? Hope so...!!!
>
>Weird thing.... a user is running one of our custom FoxFile reports, which gathers up records to output to an Excel spreadsheet.
>
>Is 3 of the columns, we see the number 65535 in many of the records. I mean MANY records.
>
>Does the number 65535 have significance to FoxFire, or to Excel for a column.
>
>Ideas?
>
>Thanks!!!