If you have already taken the local backup of your phone then, you can restore all previous from them. If you have not taken local backup then, you can restore your lost data from Google account if you had already enable the automatic option of backup & sync then, you can easily restore all lost and formatted files from your Samsung smartphone. Otherwise, you can also try Android data recovery software to get back the all kinds of deleted files from any phone such as Samsung, realme, oppo, Sony, etc. I will suggest you can free demo version.