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Awesome program for database use.

Can be used from the command line, has source code, and DLLs.

http://www.sqlite.org/docs.html

http://www.sqlite.org/quickstart.html

There are some SQLite GUI tools that can make working with it even easier.

GUI List

Freeware:

http://sqlitebrowser.sourceforge.net/ (SQlite Database Browser)
note- can import/export .CSV, .TXT, and SQL dumps.

http://www.yunqa.de/delphi/sqlitespy/ (SQlitespy)
note- Download as icon at top.

http://bobmanc.home.comcast.net/sqlitecc.html (SQlite Control Center)

http://www.dbtools.com.br/EN/index.php DBmanager Pro
note- Freeware and Payware versions. Can import and/or export between MySQL, PostgreSQL, Interbase/Firebird, SQLite, Xbase, MSAccess, MSSQL Server, Sybase and Oracle, MSAccess, ODBC datasources, MSExcel, Clipper, Dbase III/IV/V, MSFoxPro, Paradox, text files, XML

Payware GUIs, but might help with import/export issues:

http://www.kraslabs.com/sqlite_analyzer.html (SQlite analyzer.... but payware... can import from other databases to convert to SQlite)

http://www.visualsqlite.com/index.asp (Visual SQlite... payware)