Snippet showing how to set a tab called 'Mapping' as the active sheet with openpyxl.

get_mapping_tab.py

# first we set the path to Excel file
path = r".\documents\tool_setup.xlsx"

# open the file as a workbook object
wb = openpyxl.load_workbook(path, data_only=True)

# find the index of 'Mapping' sheet
idx = [i for i, name in wb.sheetnames if name == 'Mapping'][0]

# set the mapping sheet as active
wb.active = idx
ws = wb.active