2007 Office System Driver Data Connectivity Components Link ((new)) -

: Certain updates and standalone packages, such as Service Pack 3 (SP3), may still be available on the Microsoft Update Catalog .

using System.Data.OleDb;

| Error | Likely Cause | Solution | |-------|--------------|----------| | The 'Microsoft.ACE.OLEDB.12.0' provider is not registered | ACE not installed or bitness mismatch | Install correct bitness (32/64) of the driver | | Cannot update. Database or object is read-only | File permissions or file open in Excel | Close Excel, check file attributes | | External table is not in the expected format | Wrong Excel version specified | Use Excel 12.0 for .xlsx , Excel 8.0 for .xls | | Could not find installable ISAM | Missing extended properties | Add Extended Properties="Excel 12.0 Xml;HDR=YES" | 2007 office system driver data connectivity components link

When connecting to Excel, you must also add based on the file type:

What are the 2007 Office System Driver: Data Connectivity Components? : Certain updates and standalone packages, such as

Ensure your connection string specifies Microsoft.ACE.OLEDB.12.0 . Older strings using Microsoft.Jet.OLEDB.4.0 will not work with .xlsx or .accdb files.

Driver=Microsoft Access Driver (*.mdb, *.accdb);Dbq=C:\Data\Legacy.accdb; Ensure your connection string specifies Microsoft

| If you need... | Use instead | |----------------|--------------| | Modern Windows (10/11) | Microsoft Access Database Engine 2016 Redistributable | | 64-bit support | Use 2016 version (or 2010 if necessary) | | .NET Core / modern .NET | Use System.Data.OleDb with ACE driver, or consider libraries like (Excel) or LINQ to CSV |

The official download for the driver is provided by Microsoft. Because this component is older, it is often best found through archived Microsoft Support pages or Microsoft Download Center listings.

If you are attempting to run a script, application, or database migration and receive errors stating that the , you likely need this driver. Common scenarios requiring this download:

Understanding the specific link syntax—the difference between OLEDB.12.0 and Jet.4.0 , the meaning of IMEX=1 , and the bitness dilemma—turns a frustrating legacy error into a solvable problem.