>Can I ask for some techniques on how make a procedure which will Scan a certain file which when the last record is encountered, it will go back to top. ... Can I also have the right command on how to exit the loop. Would you kindly help me with this problem. Thank you very much!

Something like:

do while .T.
    doevents()
    if lastkey() = 32
         exit
    else
         if eof()
               goto top
         else
               skip
         endif
    endif
enddo

?