2013 won't convert directly up to 2021 -- it has to be "stair stepped" (upgraded to a version between 2013 and 2021 first) and then into 2021 ... we can assist with this if you'd like to contact us at 800-339-8224 to discuss.

Called twice but no answer. What time should I call Eastern time. So that I can factor in time zone difference.

We tried to return your call ... you can reach us tomorrow any time after 7am ET.  Thanks!