You can directly share your OpenOffice.org .ODT files with colleagues.
If you want to convert your document for use with a previous version of Writer or a different word processor, you should Unformat Citations before saving in the different file format. Then, you may be able to reformat. The corresponding EndNote library (or libraries) must be available in order to format.
Of course, if you just want to print a copy of the paper for someone, you do not need to do anything to your document other than print it!