--- title: "Schema (Text File Driver) | Microsoft Docs" ms.custom: "" ms.date: "01/19/2017" ms.prod: sql ms.prod_service: connectivity ms.reviewer: "" ms.technology: connectivity ms.topic: conceptual helpviewer_keywords: - "text file driver [ODBC], schema" ms.assetid: 27f1b65e-e04d-457f-bd49-02deb3873613 author: David-Engel ms.author: v-daenge --- # Schema (Text File Driver) The schema includes information about each table (text file) in a data source, including the table's format, the number of rows to scan to determine column types, whether the first row of the table contains column names, whether the source file is written using an OEM or ANSI codepage, and each column's name, data type, and width.