You can download the trial version of AutoCAD 2013 and activate the software using your serial number and product key. Let me know if this works for you.
I downloaded autocad student version with following file name AutoCAD_2013_English_Win_32bit.tar.lzma2 (around 1GB) from your site.
So my query is how to unzip this file? what software i can use to unzip this file.
I am having the same problem.
I didn't have trouble downloading the file but now I can't open it
the pages/links you suggested also didn't help.
How can i install autocad 2013 with this file i downloaded?????