I had some tutorials from a friend. But all the files were having a .chm extension. so i couldn’t view them with my linux system. i decided to google and i realised that it was a micrsoft format. But i also found out that i can have a similar program to view thm on linux. The package name is XCHM.
how to install chm == xchm on ubuntu anddebian.
sudo apt-get install xchm.