FileMenu Tools - FileMenu Tools lets you customize the context (right-click) menu of Windows Explorer.
RCDefaultApp - RCDefaultApp is a Mac OS X 10.
Ultimate Windows Context Menu Customizer - Ultimate Windows Context Menu Customizer is a freeware from door2windows that allows you to **customize the context menu of many locations with ease in Windows.Download Ultimate Windows Context...
Easy Context Menu - Easy Context menu is a Freeware portable utility that includes useful tweaks for the context menus.
Duti - duti is a command-line utility capable of setting default applications for various document types on macOS, using Apple's Uniform Type Identifiers (UTI). It's the CLI analog to RCDefaultApps and SwiftDefaultApps
Right Click Enhancer - Right Click Enhancer gives you power to control the right click menu everyone uses.