How to check if file already exist in application server?

Hi there,
Does anyone know a quick way to check if a file has already exists in an application server?
Thanks in advance.
Cheers.

Call the function PFL_CHECK_OS_FILE_EXISTENCE.
Best regards Jack
FUNCTION PFL_CHECK_OS_FILE_EXISTENCE.
""Lokale Schnittstelle:
*"       IMPORTING
*"              FULLY_QUALIFIED_FILENAME LIKE TPFHT-PFFILE
*"       EXPORTING
*"              FILE_EXISTS LIKE BTCH0000-CHAR1
OPEN DATASET FULLY_QUALIFIED_FILENAME FOR INPUT.
IF SY-SUBRC EQ 0.
     FILE_EXISTS = 'X'.
     CLOSE DATASET FULLY_QUALIFIED_FILENAME.
ELSE.
     CLEAR FILE_EXISTS.
ENDIF.
ENDFUNCTION.

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