title: indexing files in folder
body: <p>How can I index all doc files in particular folder?
  Let's say I have <code>mydocuments</code> folder which contains <code>doc</code> and <code>docx</code> files. I need to index all files in that folder for efficient search. What can you suggest for indexing folder for <code>doc</code> files?
  Note: I have looked for sphinx but it seems it indexes only xml and mssql.</p>