Please correct the following email.
Attached is the zip file of the saved web page. Please rename the file and add 'zip' as extension because Gmail did not allow the file due to a perceived security threat.
It is OK as is.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Mister Micawber, what I meant by 'That means' is not your comment, but a statement that both 'add zip as an extension' and 'add zip as extension' are correct. Do you think so or does anyone agree?
Okay, let me clarify, please! 'That' was my conviction that only 'add zip as an extension' was correct and 'add zip as extension' might be wrong. Now, could you please tell if 'add zip as an extension' is correct or not?