How to Open Encrpyted Sqllite File

How do we open encrypted db file in Datagrid. This is the error i am getting when i try to open the file:

[26] org.sqlite.SQLiteException: [SQLITE_NOTADB] File opened that is not a database file (file is not a database).
[SQLITE_NOTADB] File opened that is not a database file (file is not a database)