0.xlrd introduce
Library for developers to extract data from Microsoft Excel (tm) spreadsheet files
1. install xlrd
2. use xlrd in python
import xlrd book = xlrd.open_workbook(f)
sheet = book.sheet_by_index(0)
sheet.cell(ROW_NO, COLUM_NO).value
line 1: import xlrd module
line 3: open a xlsx file whose name is f
line4: open a sheet whose number is 0
line 5: get a specific value which is in (ROW_NO, COLUM_NO)