You cannot import such fiiles with any client tools. Only the server can read those. You should NEVER copy such files from the server data folder. They are useless when moved from there. This applies to InnoDB files in particular. MyISAM files can be copied in most cases though it is not recommended.
You will need to connect to the server from where you copied the files and then export/dump the table. The resulting SQL DUMP -file can be imported from SQLyog ‘tools’ menu .. execute SQL script