How to SELECT from any spreadsheet in Excel File using OleDbDataAdapter

I'm using OleDbDataAdapter to extract DataSet from excel file, but I have problems with SELECT statement inside

DataSet excelDataSet = new DataSet();
using (OleDbConnection con = new System.Data.OleDb.OleDbConnection(connectionString))
{
     con.Open();
     OleDbDataAdapter cmd = new System.Data.OleDb.OleDbDataAdapter("select * from [Name of spreadsheet]", con);
     cmd.Fill(excelDataSet);
     con.Close();
}

If you see I have "select * from [Name of spreadsheet]", but I need to get any spreadsheets, or for example 1st spreadsheet, but the name for this spreadsheet can be anything.

How to specify it? Is it any special characters like "select * from [%]"