Can I delete these files from my Smartphone to save space?

What are the Files that 'Appeared out of Nowhere' on my Phone? msgstore files 2 Internal storageWhatsappdatabasemsg crypt12 There are about 9 files of each above 100MB under this category They are dated from msgstore files Same here db crypt 14 files keep downloading themselves there are 6 of them Is it a malware or something? Also when I opened it

msgstore o que é The database contains all the WhatsApp backup files that are stored locally Select the ' crypt12' file and long press it and