I have a question about Vietnamese 90 day visa acceptance letter

this was my first time doing this

I went on to the website and it gave me option of number onea group acceptance letter or number to a private acceptance letter I picked the first one as it was cheaper

so I get my acceptance letter emailed to me and it has four other people on the acceptance letter, hence group acceptance letter ha ha

so my question is do I just print this group acceptance letter up and presented at the airport in Vietnam?

also I do not have a printer so what do people normally do? Can I go to a printing store and forward the email to them?

thank you