2007 Office System Driver Data Connectivity Components Link [2021] -
Compile your project targeting x86 (32-bit) instead of Any CPU , or switch your IIS Application Pool settings to allow 32-bit applications. Alternatively, install the 64-bit version of the Microsoft Access Database Engine 2010/2016. Error: "External table is not in the expected format."
The 2007 Office System Driver Data Connectivity Components contain the standalone libraries that allow non-Microsoft Office applications to read and write data to Microsoft Office system files.
Extracts data from and writes data to classic spreadsheets ( .xls ) and open XML spreadsheets ( .xlsx , .xlsm ).
Many custom-built enterprise desktop applications written in C#, VB.NET, or C++ require connection strings via OLE DB or ODBC to fetch reference data stored in shared network Excel files. This package installs the specific providers needed to handle those connection requests. Understanding the Architecture: The Bit Cross-Over Dilemma 2007 office system driver data connectivity components link
To open a link to a modern Excel workbook, your connection string should look like this:
2007 Office System Driver: Data Connectivity Components Link
Connecting BI tools like Tableau, Power BI , or Python scripts to Access files. Compile your project targeting x86 (32-bit) instead of
Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\myFolder\myExcelFile.xlsx;Extended Properties="Excel 12.0 Xml;HDR=YES;"; Use code with caution.
These later releases offer dedicated, native 64-bit versions of the ACE provider, solving the architecture mismatch for modern servers.
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The 2007 version of the Data Connectivity Components was designed and released primarily as a driver. This creates a significant architectural hurdle on modern 64-bit Windows operating systems:
You can download the 2007 Office System Driver: Data Connectivity Components directly from Microsoft. Ensure you download the version matching your application's architecture (32-bit vs. 64-bit).
: It enables the use of OLE DB and ODBC interfaces, which are industry standards for database communication. Extracts data from and writes data to classic spreadsheets (
Driver=Microsoft Access Driver (*.mdb, *.accdb);Dbq=C:\Data\Legacy.accdb;