Access to SQL Server table

CREATE DATABASE AccessX
GO
USE AccessX
GO
CREATE TABLE [dbo].[AccessDB](
                [LOJA] [nvarchar](50) NULL,
                [DATA] [nvarchar](50) NULL,
                [CODIGO DO MATERIAL] [nvarchar](50) NULL,
                [QUANTIDADE] [nvarchar](50) NULL,
                [TOTAL DO ITEM] [nvarchar](50) NULL,
                [intFinalEntrada] [int] NULL,
                [intFinalAno] [int] NULL,
                [strFinalNF] [nvarchar](255) NULL,
                [strFinalCNPJ] [nvarchar](255) NULL,
                [strFinalMaterial] [nvarchar](255) NULL,
                [dtmFinal] [datetime] NULL,
                [strFinalTipo] [nvarchar](255) NULL,
                [strFinalBase] [nvarchar](255) NULL,
                [dblFinalQuantidade] [float] NULL,
                [dblFinalAliquota] [float] NULL,
                [strCruzamento] [nvarchar](255) NULL,
                [dblFinalBaseST] [float] NULL,
                [dblFinalBaseUnitaria] [float] NULL,
                [dblFinalBaseProporcional] [float] NULL,
                [dblFinalDiferenca] [float] NULL,
                [dblFinalCompletar] [float] NULL,
                [dblFinalRessarcir] [float] NULL
) ON [PRIMARY]

GO

DECLARE @tableName VARCHAR(100)
DECLARE @FileName VARCHAR(100)
DECLARE @Id int = 0
DECLARE @Query NVARCHAR(MAX)
DECLARE @MaxId int
DECLARE @files TABLE (ID int IDENTITY, FileName varchar(100))
INSERT INTO @files EXECUTE xp_cmdshell 'dir c:\x /b'

SELECT @MaxId = MAX(Id) FROM @files

WHILE (@Id < @MaxId) BEGIN
	SELECT 
		@FileName = [FileName]
		,@tableName = REVERSE(SUBSTRING(REVERSE([FileName]),  CHARINDEX('.', REVERSE([FileName])) + 1, 999))
	FROM
		@files
	WHERE ID = @Id

	SET @Query = 
	'INSERT INTO dbo.[AccessDB] SELECT * FROM OPENDATASOURCE(
	''Microsoft.ACE.OLEDB.15.0'',
	''Data Source="c:/x/'+@FileName+'"'')...['+@tableName+']'
	
	EXECUTE sp_executesql @Query
	SET @Id = @Id + 1
END

SELECT * FROM dbo.[AccessDB]