.. highlightlang:: us

.. index:: IsFileLotus

.. _isfilelotus:

IsFileLotus
===========

.. us.tag  IsFileLotus ENGLISH FILE_MISC New320

:ref:`IsFileLotus` checks if the given file is a Lotus 1-2-3file (:file:`.WK1`).

.. function::  nVersion = IsFileLotus(ssFileName)

.. us.return

**Return Value**

This function returns the file format revision number (e.g. 1028= 1-2-3 file or
1029= Symphony file) or 0 if the file is not a Lotus WK1 file or cannot be opened.

.. us.params

**Parameters**

.. uparam:: ssFileName

   *ssFileName* is the file name.

.. us.example

**Example**

::

   if (IsFileLotus("c:/data/test.wk1")) {
       MessageBox("test.wk1 is a Lotus File");
   } else {
       MessageBox("test.xls is not a Lotus File");
   }

.. seealso::
   :ref:`LotusRead`

:sub:`id-351785`