but could not open it
use a plain text editor (in case you are using windows: it appears just as "my")
the InnoDB is enabled. thank you.
I used NotePad to upload my.cnf and uncommented the lines regarding InnoDB.
innodb_data_home_dir = /opt/lampp/var/mysql/
innodb_dat_file_path = idbdata1:10M:autoextend
innodb_log_group_home_dir = /opt/lampp/var/mysql/
innodb_log_arch_dir = /opt/lampp/var/mysql/
InnoDB is among the table type selection list.