Don't forget that now that it is in the tempdb table you can script out a field descriptor or a CREATE table statement. Use that for a permanent import table elsewhere.

USE tempdb
GO
SELECT *
INTO MyEXCELSheet
FROM OPENDATASOURCE(
'Microsoft.Jet.OLEDB.4.0',
'Data Source="E:\atest.xls";Extended properties=Excel 5.0'
)...Sheet1$
--
-- Now use Query Analyzer to script out the table in tempdb. Here's a sample script.
--
CREATE TABLE [dbo].[MyEXCELSheet] (
[CustomerID] [nvarchar] (255) NULL ,
[EmployeeID] [float] NULL ,
[Freight] [float] NULL ,
[OrderDate] [datetime] NULL ,
[OrderID] [float] NULL ,
[RequiredDate] [datetime] NULL ,
[ShipAddress] [nvarchar] (255) NULL ,
[ShipCity] [nvarchar] (255) NULL ,
[ShipCountry] [nvarchar] (255) NULL ,
[ShipName] [nvarchar] (255) NULL ,
[ShippedDate] [datetime] NULL ,
[ShipPostalCode] [float] NULL ,
[ShipRegion] [nvarchar] (255) NULL ,
[ShipVia] [float] NULL
) ON [PRIMARY]
END
GO