https://www.infopathdev.com:443/forums/41.aspxIf you're not sure where to ask your question, ask it here. If necessary, our moderators will make sure it gets classified in the correct board.enCommunityServer 2007 SP3 (Build: 31118.962)https://www.infopathdev.com:443/forums/thread/89045.aspxFri, 19 Apr 2013 22:55:48 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:89045Hilary Stoupa0https://www.infopathdev.com:443/forums/thread/89045.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=41&PostID=89045<p>&nbsp;A .xsn is an InfoPath template with all of its files packed up - you can rename to .cab and expand if you want. If you do that, or if you save your form as source files, you&#39;ll see that one of the files that makes up your .xsn file is an .xsf file.</p><p>However, I don&#39;t understand what you have going on that your code is not saving correctly - I think that is what you are saying?</p>https://www.infopathdev.com:443/forums/thread/88994.aspxThu, 18 Apr 2013 05:04:33 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:88994Treasurydude0https://www.infopathdev.com:443/forums/thread/88994.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=41&PostID=88994<p>Can some one explain how an Infopath file .xsf and&nbsp; xsn related? , </p> <p>&nbsp;</p> <p>I have my form options Full Trust , and a certificate to run a code which writes files to x drive. Every time i change C# code in Infopath , i need to include my certificate in form options and i found out , you have to do save file or save as, once you save file, some of my coding was getting wiped out.</p> <p>so if some one can explain xsf and xsn how they are integrated.. would be good thanks -</p>