"Tarea 705.rar" is likely a harmless academic archive, but the internet is full of "homework" files that serve as bait for unsuspecting students. —your grades aren't worth a compromised computer.
: If the "Tarea" is for a programming course, it may contain .cpp , .py , or .java files. Tarea 705.rar
Who is the for your blog (students, IT professionals, etc.)? "Tarea 705