Hi Kiran,
When users fill out forms, data is saved in a database. You can configure what database is used, but you can't, out-of-the-box, have Orbeon Forms save the files in "straight" XML files on disk. However, you could have Orbeon Forms save the data in a database, and whenever you need the XML as files, extract them from the database. Is this something that could work for you?
Alex
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