[Zope] access to external text file

I'm new to Zope. I need access to a text file external to Zope to extract some input information for my Zope database. I installed the LocalFs.1-0-0 product. As soon as I added a LocalFS object, my folder became unaccesible. I could access it after I removed LocalFS product. Can you advice me how to read an external text file with or without LocalFS? I work with Zope 2.7.0. Thank you. Elena.