I'm currently looking for a fast and efficient way to import an Excel file into a javascript array, and export it also. I also need a way to do the same thing, but the opposite way ...

Emacs package to automatically import JavaScript files from the current project or dependencies. Select any JavaScript file from your project or dependency from package.json and automatically generate ...

Tell Eclipse that src is your source folder (not your project folder). Then try putting your foreign .class files in c foo\otherclassfiles or such and try importing that.