It seems you're asking about "ASC Horarios Portable Exclusive" — likely referring to a portable (USB) version of a scheduling or academic timetabling software used in Spanish-speaking countries (especially for schools, high schools, or universities).
Conclusion
import tkinter as tk
from tkinter import ttk, messagebox, filedialog
import json
import os
from datetime import datetime
The "Portable Exclusive" Difference
The term "Portable Exclusive" refers to a specialized build of ASC Horarios that does not require formal installation on a host computer. Unlike standard software that implants files across your C: drive and Registry, the Portable Exclusive version lives entirely on removable media (a USB flash drive, external SSD, or cloud-synced folder).