python - Storing xlsx sheet in sql server -

i trying store xlsx sheet sql server using python , error:

sql server error traceback (most recent call last):   file ".\script_to_extract_mh_data.py", line 104, in      m_flag = sheet.cell(r, 22).value   file "c:\python27\lib\site-packages\xlrd\sheet.py", line 401, in cell     self._cell_types[rowx][colx], indexerror: array index out of range

import xlrd import pymssql book = xlrd.open_workbook("c:/users/talha/documents/maharashtradata.xlsx") sheet = book.sheet_by_index(0)  # establish mssql connection servername = "192.168.1.100" database = "imddata" username = "saaa" password = "abcd@aassapla_2012" conn = pymssql.connect(server=servername, user=username, password=password,  database=database) cursor = conn.cursor()  #cursor = database.cursor()  query = """insert forecast_db (srno, state, statecd, district, issuedon, day, n_rainfall, n_tempmax, n_tempmin, n_cloudcover, n_rhmax, n_rhmin, n_windspeed, n_winddirection, m_rainfall, m_tempmax, m_tempmin, m_cloudcover, m_rhmax, m_rhmin, m_windspeed, m_winddirection, m_flag) values (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)"""    r in range(1, sheet.nrows):       srno      = sheet.cell(r,0).value       state = sheet.cell(r,1).value       statecd          = sheet.cell(r,2).value       district     = sheet.cell(r,3).value       issuedon       = sheet.cell(r,4).value       day = sheet.cell(r,5).value       n_rainfall        = sheet.cell(r,6).value       n_tempmax       = sheet.cell(r,7).value       n_tempmin     = sheet.cell(r,8).value       n_cloudcover        = sheet.cell(r,9).value       n_rhmax         = sheet.cell(r,10).value       n_rhmin          = sheet.cell(r,11).value       n_windspeed   = sheet.cell(r,12).value       n_winddirection = sheet.cell(r, 13).value       m_rainfall = sheet.cell(r, 14).value       m_tempmax = sheet.cell(r,15).value       m_tempmin = sheet.cell(r, 16).value       m_cloudcover = sheet.cell(r, 17).value       m_rhmax = sheet.cell(r, 18).value       m_rhmin = sheet.cell(r, 19).value       m_windspeed = sheet.cell(r, 20)       m_winddirection = sheet.cell(r, 21).value       m_flag = sheet.cell(r, 22).value        # assign values each row       values = (srno, state, statecd, district, issuedon,day, n_rainfall, n_tempmax, n_tempmin, n_cloudcover, n_rhmax, n_rhmin, n_windspeed, n_winddirection, m_rainfall, m_tempmax, m_tempmin, m_cloudcover, m_rhmax, m_rhmin, m_windspeed, m_winddirection, m_flag)        # execute sql query       cursor.execute(query, values)  # close cursor cursor.close()  # close database connection database.close() 

where doing wrong?