Download 2021 Microsoft.ace.oledb.12.0 Provider For Both 64-bit 【Top 100 Reliable】

To , you need the Microsoft Access Database Engine Redistributable . This data component allows your applications—like SQL Server, Visual Studio, UiPath, or Python—to seamlessly connect to Microsoft Access ( .accdb , .mdb ) and Excel ( .xlsx , .xls ) data files.

No. Microsoft does not allow redistribution of the DLL alone due to licensing. You must use the redistributable installer.

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\MyFolder\MyOldWorkbook.xls;Extended Properties="Excel 8.0;HDR=YES"; download microsoft.ace.oledb.12.0 provider for both 64-bit

Microsoft has phased out direct support for the 2010 redistributable in favor of newer versions. As of mid-2026, the is the recommended choice.

Double-click the downloaded file (e.g., AccessDatabaseEngine_X64.exe ). To , you need the Microsoft Access Database

This error happens because the necessary driver—the —is missing, specifically for the architecture (32-bit or 64-bit) that your application is running.

To use the Microsoft.ACE.OLEDB.12.0 provider, you'll need to download and install it on your system. Here are the steps: Microsoft does not allow redistribution of the DLL

This article provides direct download links for the , the official source for the 64-bit (and 32-bit) ACE.OLEDB.12.0 provider, along with solutions to install both on the same machine.

Although Microsoft has removed some direct 2010 version links, you can typically use the , which still provides the Microsoft.ACE.OLEDB.12.0 provider for backward compatibility.

Follow the on-screen prompts to complete the installation setup. Step 3: Force Install the Second Version via Command Line