filepath = filedialog.askopenfilename(initialdir="C:\\Users\\Cakow\\PycharmProjects\\Main",title="Open file okay?",filetypes= (("text files","*.xlsx"),("all files","*.*")))
filepath = Path(filepath)
book = load_workbook(filepath)
a = book.sheetnames
combobox_1 = customtkinter.CTkComboBox(self.login_frame, values=["Option 1", "Option 2", "Option 42 long long long..."])
combobox_1.grid(row=5, column=0, padx=30, pady=(15, 15))
combobox_1.set("CTkComboBox")