Anybody tell me what's wrong with creating this stored procedure.

```
CREATE PROC ImportData
AS
BEGIN

    DECLARE @DatabasePath VARCHAR(MAX)
    SET @DatabasePath = 'E:\ABC.xls'

    DECLARE @sql      nvarchar(MAX)
    SET @sql = '
    INSERT INTO [dbo].[Table_1]
    SELECT  *
    FROM OPENROWSET(''Microsoft.Jet.OLEDB.4.0'',
            ''Excel 8.0;Database=' + @DatabasePath + ',
            ''SELECT * FROM [Sheet1$]'') AS xlsTable'

    EXEC sp_executesql @sql
    GO

END

ERROR:-
Incorrect syntax near '@sql'.
Msg 102, Level 15, State 1, Line 2
Incorrect syntax near 'END'.

```