What is CubicExplorer?
CubicExplorer is a file manager which is aimed to replace Windows Explorer. It’s goal is to be easy and pleasant to use but still have enough power for more advanced usage. Its key features are tabs and bookmarks. It also has sessions, filtering, file previews, search and many more features
Last commit 2013, website no longer up. See https://code.google.com/archive/p/cubicexplorer/source/default/commits