2016 Colornote saving manual backup in .doc format

I saw in https://android.stackexchange.com/q/35207/44325 that I could open the colornote.db file that was stored on /data/data/com.socialnmobile.dictapps.notepad.color.note/databases/ with a DB SQLite browser. I think it must be outdated because there is no databases folder but files and cache folders instead. Therefore, I did a manual backup and I saw that the backup file was given a name of (whatever).doc extension. And when I opened that .doc file, I saw strange characters. How can I open that file correctly?