: OWC11 is an "End of Life" product. It was the last version released and is not officially supported on modern versions of Windows (Windows 10/11) or modern 64-bit Office versions. Microsoft Community Hub How to Make it Work (Compatibility Issues)
However, if you obtain it for a legacy internal app (air-gapped system, old IE mode): microsoft office web components 110 library download work
If you’ve installed the library but receive a "Class not registered" or "Object library not registered" error, check the following: : OWC11 is an "End of Life" product
The library was designed to bridge the gap between heavy desktop applications like Excel and the emerging web. Its primary components included: Spreadsheet Component: microsoft office web components 110 library download work
: The components rely on ActiveX, which is only natively supported by Internet Explorer. Modern browsers like Microsoft Edge and Chrome do not support these controls. Software Requirement