Mountain Duck, based on the solid open-source foundation of Cyberduck, allows you to mount remote volumes in Finder on macOS and File Explorer on Windows. Access remote files as if they were on a local disk, and edit them with your preferred applications. A minimalist user interface in the menu bar allows you to quickly mount remote volumes. Bookmarks are shared with Cyberduck if installed.

TableEdit - edit spreadsheets in a simple, clean & elegant way
TableEdit is a simple, clean & elegant spreadsheet application designed specifically for OS X. TableEdit features a minimalistic yet intuitive interface and has convenient features like formulae, charts and exhaustive cell styling options as well as comprehensive import & export options.