One advantage of an in-browser tool is that the hosting can be anywhere, from the cloud to your local computer. I set up a simple nodejs server (using the modu

One advantage of an in-browser tool is that the hosting can be anywhere, from the cloud to your local computer. I set up a simple nodejs server (using the module `j` http://npm.im/j http://npm.im/j) that exposes all of the XLSB files in a directory on a computer and generates Numbers-compatible CSV output so I can read the data on iPhone when I need to. The data is hosted locally, and unlike with saving CSVs the output is always up to date