I\'m pretty new to android, and just finished setup my environment and reading some tutorials. Then I got sdk samples from the web. Okay, what I wanna ask you is that is the
This may not be a definitive answer because I'm relatively new to Android as well (and come from more of a .Net background too).
When you create a new Workspace in Eclipse, you'll see a new folder created with the name of your workspace and a .metadata folder inside of it. I don't think there's a "workspace file" per se, so you don't double click anything to bring it back up. You just open to that workspace (by telling the Eclipse dialog what path to open).
As far as importing existing projects into a workspace, copy the whole folder into your workspace and click File - Import... - General - Existing Projects into Workspace. Click the Browse button to select the Root directory and it should default to the Workspace's main folder. Click OK and the project should show up in the dialog. Select it and click Finish