Microsoft Excel 16.0 Object Library Dll Download - 【TESTED】

The 16.0 Object Library is installed automatically with any edition of Microsoft Office that includes Excel (Home & Student, Professional, Business, or Microsoft 365).

Steps to repair:

Windows 10/11:

Via Control Panel (legacy):

After repair, the Excel 16.0 Object Library will be correctly registered in the Windows Registry, and your development environment will detect it. Microsoft Excel 16.0 Object Library Dll Download -

Use Open XML SDK (free, from Microsoft) to manipulate .xlsx files directly. No Excel required.

For most users, Microsoft Excel is a destination—a place where rows and columns meet to crunch numbers. But for developers and power users, Excel is merely a component. It is a programmable engine waiting to be harnessed by external applications. The bridge between a custom software solution and the raw power of a spreadsheet is a specific, often misunderstood file: the Microsoft Excel 16.0 Object Library.

If you have encountered a "Missing Reference" error or are building a VBA-heavy Access database, understanding this library is the difference between a broken workflow and seamless automation.

Run an Online Repair of Office (Method 1). Also, ensure your project targets the correct processor architecture (x86 vs x64) matching Office. The 16

You can check programmatically via PowerShell:

$excel = New-Object -ComObject Excel.Application
$excel.Version

If it returns 16.0, the library is installed and functional. If you get an error, repair Office.

Alternatively, check the registry key:

HKEY_CLASSES_ROOT\TypeLib\00020813-0000-0000-C000-000000000046\1.9

If that GUID exists with subkeys, the 16.0 library is registered. Via Control Panel (legacy):

If the library is installed but not registered properly, you can manually re-register it.

Note: regtlibv12.exe is a legacy tool; newer Office versions manage registration automatically. Most users will not need this step.

  • Install the Microsoft Access Database Engine Redistributable only if you need Office data drivers — not a substitute for Excel COM library.

    • Technically, copying EXCEL.EXE or MSO.DLL will not work — COM registration depends on hundreds of Registry entries and dependent files. Always install Office properly.