I'm trying to open the
listchanges.db file located under
DB Browser for SQLite under Debian 9.1 with KDE and it says: "Invalid file format."
How can I open it?
listchanges.db, as used by
apt-listchanges, is a Berkeley DB database, not a SQLite database:
$ file /var/lib/apt/listchanges.db /var/lib/apt/listchanges.db: Berkeley DB (Hash, version 8, native byte-order)
You can dump its contents (albeit not in a particularly human-readable format) using
db5.3_dump /var/lib/apt/listchanges.db | less
For human-readable output, use