How to edit the web.xml file

hi friends,
i have been working with netbeans for webapplications so far therefore its not ever been requerd to edit the web.xml file that automatically done by IDE itself.
now, i am just trying to deploy the servlet and jsp's externally without using any tool and i found a requrement to map the servlet and jsp in web.xml file. when i try to edit inside this file it seems noneditable, nothing gonna change. i have an alternate to do this is firstly copy the content of this file into txt file and after making the requred changes overwrite this file in .xml formate to orignal web.xml file.
am i going in right way?? please help me
regards
san

open it in a text editor and modify it.
%

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