This macro takes a directory of XLSX files, and outputs all the data within each sheet into 1 output stream. This allows for multiple excel files to be unioned together without having to add multiple input data tools onto the canvas.
All you need to do is put the macro onto your canvas, paste the directory the files are located in, the row number the data starts on in each file, and if you want to include subdirectories.
This tool will only work with files where the data starts on the same line.