Reading Excel sheet when sheet name is unknown

I'm starting to mess around with importing Excel sheets into gridviews. Thanks to some research in this forum, I have almost everything I need. The problem I have is all the examples require the system to already know the sheet name or have a named range defined in Excel:

OleDbCommand objCmdSelect = new OleDbCommand("SELECT * FROM myRange1", objConn);

Is there a way to just get the first worksheet of information regardless of name? Oh, one other twist, the sheet may already be named, so I cannot assume it is the default name.

Any help is appreciated!
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