This article describes the different types of DB files, explains what the most common DB files are used for, and how to open them. It also explains the Windows Thumbs.db files.
Opening Files with DB Browser for SQLite
The .DB file extension is often used by a program to indicate that the file stores information in a structured database format.
For example, mobile phones can use them to store encrypted application data, contacts, text messages, or other information.
Other programs may use DB files for plug-ins that extend the program's functionality, or for maintaining information in tables or some other structured format for chat logs, history lists, or session data.
