You may need the Microsoft Excel 120 Object Library DLL in the following situations:
Download the official Microsoft.Office.Interop.Excel package on NuGet . microsoft excel 120 object library dll free download repack
Are you trying to fix a specific error code in a VBA macro or a standalone application? You may need the Microsoft Excel 120 Object
The "120" in the name refers to the version of the Excel object library, which corresponds to Excel 2007. This library is required for applications that use Excel 2007 features, such as creating and manipulating workbooks, worksheets, and charts. such as creating and manipulating workbooks