Looks like VFP exports dates differently than Fox 2.x. I guess you'll have to postprocess the file. Something like

SET DATE YMD
SET MARK TO "|"    && A character that is not presented in the data

COPY TO (lcFileName) DELIMITED 
STRTOFILE(CHRTRAN(FILETOSTR(lcFileName), "|", ""), lcFileName)
SET MARK TO
* Restore SET DATE
...

>SELECT prsys
>COPY TO (ALLTRIM((pathtxt) + "dnsys" + (gc_accno) + ".DAT"));
> FOR (gc_accno = s_co_code);
> TYPE DELIMITED
>