@SandeepG01    Ahh no fun with bad filenames.  Space in filename is highly not recommended in these days and times.  That said,  a solution you might try is to \  (backslash) the space.   Especially in the context of passing the filename in flowfile attributes.   If you still need to allow spaces and cannot resolve upstream (do not use spaces), i might suggest submitting your experience over on the NiFI jira as a bug:   https://issues.apache.org/jira/projects/NIFI/issues   If this answer resolves your issue or allows you to move forward, please choose to ACCEPT this solution and close this topic. If you have further dialogue on this topic please comment here or feel free to private message me. If you have new questions related to your Use Case please create separate topic and feel free to tag me in your post.   Thanks, Steven ... View more