static void Main(string[] args)
The most direct way to place the 12.0 library onto a machine is to install Microsoft Office 2007. The installation routine automatically registers the necessary COM types and embeds the primary engine file, EXCEL.EXE , directly into your program directories. 2. Download via NuGet Package Manager (.NET Developers) Missing Microsoft Excel 12.0 Object Library-VBForums microsoft office excel 12.0 object library download
COM registration is broken.
next to the library in the References window, your code is looking for a version of Excel that isn't on your current machine. Microsoft Learn Microsoft Office Object Library Download - Google Groups static void Main(string[] args) The most direct way
Sometimes, even after installation, the library is not correctly registered with Windows. Download via NuGet Package Manager (
If you are developing applications that interact with Excel 2007 files ( .xlsx , .xlsm ) without having Office installed, you may actually need the or Primary Interop Assemblies :
If your project absolutely requires the 12.0 reference (e.g., maintaining a legacy VB6 application on a dedicated server), you must install Microsoft Office 2007 on that machine.