Identify the based on where you found the link?
: Used by universities to distribute large lecture recordings or datasets. MWEOCVA20135.part06.rar
: You cannot open .part06 alone. You need all parts (part01, part02, etc.) in the same folder. Use a tool like 7-Zip or WinRAR to extract part01 , which will automatically pull data from the rest. Identify the based on where you found the link