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Now the dialogs disappear and your keyspace should appear in the list. At this point we're ready to enter data, but we're going to do that from another tool: the CLI (command line interface) client.
The almighty bin folder
Open up a File Explorer window and head over to the bin folder. The default location for this folder on a 64-bit Windows machine is C:\Program Files (x86)\DataStax Community\apache-cassandra\bin. A bunch of important files are here, including the cassandra-cli.bat file, which runs the CLI client, and the cqlsh Python script, which runs the Cassandra Query Language (CQL) Shell.
Double-click the cassandra-cli.bat file to load the CLI client now.
The CLI client
The CLI client lets you run such commands as USE (to address a specific keyspace) and CREATE COLUMN FAMILY (which is self-explanatory), both of which are shown here. Make sure to end all commands with a semi-colon. When you're done, type "exit;" at the prompt (without the quotes) and tap the Enter key.