Цикл (list index out of range)

import ipaddress
from tkinter import*
from tkinter import ttk
from tkinter.filedialog import askopenfilename
import os
import xlrd,xlwt
import easygui
Exel=easygui.fileopenbox(filetypes=["*.xlsx"])
Save=os.path.dirname(Exel)
file=xlrd.open_workbook(f'{Exel}')
sheet=file.sheet_by_index(0)
s=1
while s<=100:
    Unit=sheet.row_values(s)[12]
    if Unit==2:
        nameFile=sheet.row_values[s][1]
        create=open(f'{Save}{nameFile}.txt','w')
        VLAN=int(sheet.row_values(s)[2])
        RouterID=sheet.row_values(s)[3]
        RouterID=ipaddress.ip_address(f'{RouterID}')
        intVlan=sheet.row_values(s)[4]
        intVlan=ipaddress.ip_address(f'{intVlan}')
        MASK=sheet.row_values(s)[5]
        VIDEO=sheet.row_values(s)[6]
        TELEM=sheet.row_values(s)[7]
        MANAGEMENT=sheet.row_values(s)[8]
        uplink=int(sheet.row_values(s)[9])
        Camera=int(sheet.row_values(s)[10])
        area=sheet.row_values(s)[11]
        area=ipaddress.ip_address(f'{area}')
        with open(f'{Save}{nameFile}.txt','w') as create:
            create.write(f'''vlan database
vlan 20,40,50,999
exit
''')
   elif Unit==3:
        nameFile=sheet.row_values(s)[1]
        create=open(f'{Save}{nameFile}.txt','w')
        VLAN=int(sheet.row_values(s)[2])
        RouterID=sheet.row_values(s)[3]
        RouterID=ipaddress.ip_address(f'{RouterID}')
        intVlan=sheet.row_values(s)[4]
        intVlan=ipaddress.ip_address(f'{intVlan}')
        MASK=sheet.row_values(s)[5]
        VIDEO=sheet.row_values(s)[6]
        TELEM=sheet.row_values(s)[7]
        MANAGEMENT=sheet.row_values(s)[8]
        uplink=int(sheet.row_values(s)[9])
        Camera=int(sheet.row_values(s)[10])   
        area=sheet.row_values(s)[11]
        area=ipaddress.ip_address(f'{area}')
        Serv=sheet.row_values(s)[13]
        Serv=int(Serv)
        with open(f'{Save}{nameFile}.txt','w') as create:
            create.write(f'''vlan database
vlan 20,40,50,999
exit''')
    s+=1
print("GOD")
print("completed",Save)

sheet.row_values(s, start_colx=12, end_colx=12)

print(sheet.row_values(s))

print(sheet.row_values(s)[12])

Exel=input("Введите путь файл EXEL в формате C:\\Users\\User\\Desktop\\test.xlsx:")
Save=input("Введите путь до папки сохранения в формате C:\\Users\\User\\Desktop\\:")
file=xlrd.open_workbook(f'{Exel}')
sheet=file.sheet_by_index(0)
s=1
while s<=100:
    Unit=sheet.row_values(s)[12]
    if Unit==2:
        nameFile=sheet.row_values(s)[1]
        create=open(f'{Save}{nameFile}.txt','w')
        VLAN=int(sheet.row_values(s)[2])
        RouterID=sheet.row_values(s)[3]
        RouterID=ipaddress.ip_address(f'{RouterID}')
        intVlan=sheet.row_values(s)[4]
        intVlan=ipaddress.ip_address(f'{intVlan}')
        MASK=sheet.row_values(s)[5]
        VIDEO=sheet.row_values(s)[6]
        TELEM=sheet.row_values(s)[7]
        MANAGEMENT=sheet.row_values(s)[8]
        uplink=int(sheet.row_values(s)[9])
        Camera=int(sheet.row_values(s)[10])
        area=sheet.row_values(s)[11]
        area=ipaddress.ip_address(f'{area}')
        with open(f'{Save}{nameFile}.txt','w') as create:
            create.write(f'''vlan database

while s<=sheet.nrows

sheet = rb.sheet_by_index(0)
for rownum in range(sheet.nrows):
    row = sheet.row_values(rownum)
    print(row) # вся строка
    print(row[0]) # вывод по индексу
    print(row[:3]) # вывод среза строки: 0,1,2 столбец
    # перебор строки 
    for c_el in row:
        print(c_el)
 
# обход по столбцам
for colnum in range(sheet.ncols):
    column = sheet.col_values(colnum)
    columnn = column[1:] # срез от колонки
    print(columnn)