Reformatting taking long time - can I stop it??

Hi everyone,

I have been working on my thesis using Endnote but kept citations unformatted as teh document got larger. I am due to give my supervisor a printed version of my whole document in 20 minutes for her to check through on a plane as she heads overseas. For some reason I stupidly thought I would update my citatations just to make everything look neater but I am now still sitting here half an hour later still waiting for them to format!! Is this a normal amount of time for a document with 200+ refeferences? And am I able to stop this process without wrecking the document so i can print it off?

Thanks!

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