You can use pandas module to do so. You open a command prompt with administrator privileges and then execute this :
pip install pandas
This will download, install and add pandas to your existing python installation.
After that you can execute this code in a python file.
import pandas as pd
table = pd.read_excel('sales.xlsx',
sheetname = 'Month 1',
header = 0,
index_col = 0,
parse_cols = "A, C, G",
convert_float = True)
print(table)