title: Open existing database file in SQuirreL
body: <p>I have installed SQuirreL client to open my file database. I have file named "database.h2.db" and I want to read its content. Well, that's first time I work with database like that. All I need to do is simple change some data in it. I'm not working with Java and not building any project, just edit something in database, probably 1-2 records. So here I am.</p>