Yes, Endnote is basically the software to format your bibliography at the end of documents (manuscript, thesis, lab report, etc) based on the publisher’s formatting requirements.
Publishers set the rule to format authors, like “Smith J”, “Smith, J.” or “J Smith”. How many authors to be listed, is also dependent on the journal or publishers.
Endnote has lots of style definitions that format your bibliography. If you are using Word, “format bibliography” command does that job. Cite while you write is the feature with which the formatting is “dynamically” updated while you write your document. I meant “on the fly” because we don’t need to worry about the formatting. Either pressing “format bibliography” command or turning on the CWYW feature does that job.
Hope this helps as an etry to Endnote.