[blitz];Create array
Dim mas(9)
;Fill array
For i=0 To 9
mas(i)=i
Next
;Open file for writing
file = WriteFile("file.txt")
;write data from array to file
For i = 0 To 9
WriteLine(file,mas(i))
Next
;close file
CloseFile(file)
;done.
End[/blitz]
Всё работает.