i'cant use copy to c:\yy type xls look my program

the problem is numcta field , that data is a account number of bank.

oExcel.cells(lnCells,10)=ALLTRIM(sexo)
oExcel.cells(lnCells,12)=ALLTRIM(dircorres)
oExcel.cells(lnCells,13)=ALLTRIM(ciudadcorr)
oExcel.cells(lnCells,14)=telcorresp
oExcel.cells(lnCells,17)=ALLTRIM(formapago)
oExcel.cells(lnCells,18)=' '+ALLTRIM(NUMCTA)
oExcel.cells(lnCells,20)=ALLTRIM(banco)
DO case
CASE ctacorrien=.T.
oExcel.cells(lnCells,21)='PLSANCHK'
CASE ctaahorros=.t.
oExcel.cells(lnCells,21)='PLSANSAV'
CASE TARJCREDIT=.t.
oExcel.cells(lnCells,21)='TARJCREDIT'
CASE UPPER(SUBSTR(clasetarje,1,1))='V'
oExcel.cells(lnCells,22)='PV'
CASE UPPER(SUBSTR(clasetarje,1,1))='M'
oExcel.cells(lnCells,22)='PM'
ENDCASE
oExcel.cells(lnCells,24)=ALLTRIM(dptocorres)
oExcel.cells(lnCells,25)=ALLTRIM(tmstart)
oExcel.cells(lnCells,26)=ALLTRIM(operador)
SKIP
ENDDO