My company sent a phishing email – can they see if I saved the attachment?

My company sent a phishing email – can they see if I saved the attachment?

My company is doing an anti-phishing campaign and sent out a "fake" email to see how many people would open the attachment. They had previously sent out information about how to avoid these kind of attacks.

So of course I recognized the email as part of the campaign, but my curiosity got the best of me and I was dying to see the code (it was an .html attachment). My question is: will they know if I saved the attachment to my desktop and then opened it with Notepad? I guess a secondary question would be is that safe to do in the first place?

I can attach the HTML code if anyone is curious, redacting the company specific information of course, but I'm not sure if that's necessary. Thanks in advance!