Linear discriminant analysis software

A folder with n .xlsx files is given (see the input image); the software will have to perform a linear discriminant analysis on each file and will have, on the basis of the training set, a category to the group of samples (unknowns) to be classified (see image output).
At the end of the analysis process, if possible, it is necessary to merge all the output files into a single file as (see image list).
The whole process is summarized in the image process