If your employer covered all of your school expenses, including your textbooks, university fees, etc., then you are correct in that this information won't actually change anything on your income tax return (i.e., won't result in a larger refund). In that case, you really have nothing new to report, and thus you would not need to, or want to, amend your original tax return.
In other words, unless your 1098-T indicates that you received scholarships and grants in excess of tuition (which is considered taxable income, by the way), you are not required to use the 1098-T or include it on your tax return. This is a way of saying that the 1098-T document is essentially optional to you, the taxpayer, as long as it doesn't contain information that indicates you need to report excess (taxable) scholarship or grant income.
That said, even where your employer may have paid for your tuition in full, if there are additional academic fees or books that you had to pay for out-of-pocket, and for which you were not reimbursed, then you may want to (potentially) amend your tax return to take advantage of an educational tax benefit based on those expenses.
However, that choice is up to you. You don't have to amend if you don't want to. If you'd simply like to explore the option, then we would suggest that you go through the amended return process, enter any educational costs not previously input, and continue up to the point where you can see if it changes your refund for the better. If it doesn't, then you can always back out and cancel. If it does increase your refund, then you can amend and file if you like. Finally, if you conclude that it's just not worth the time and effort to conduct this personal experiment and see, then that's a perfectly valid decision as well. You are not required to necessarily do anything.
Thank you for asking this question.
