[Zope] uploading text file by FTP: encoding problem?

Hi, I have a problem when I upload an ASCII text file into a zope2 folder. I have a plain-text file with double quotes and line breaks. However, once uploaded, double quotes become " and line breaks become \n. Even if I change the property into text/plain or text/xml, I get the same problem. Only if I create a file using the manager, then copy my text into it, that I keep the original formatting. Do I do something wrong? How to preserve the original encoding? Thanks. Eric