Can anybody help through EXCEL for bellow problem step by step tutorial.

The Consumer Confidence Index (CCI) attempts to measure people's feelings about general business conditions, employment opportunities, and their own income prospects. Monthly average values of the CCI are listed in the file P02_20.xlsx. a. Make a time series graph of the CCI values. b. Have U.S. consumers become more or less confident through time? c. How would you explain recent variations in the overall trend of the CCI?

Month	CCI
Jun-1997	129.9
Jul-1997	126.3
Aug-1997	127.6
Sep-1997	130.2
Oct-1997	123.4
Nov-1997	128.1
Dec-1997	136.2
Jan-1998	128.3
Feb-1998	137.4
Mar-1998	133.8
Apr-1998	137.2
May-1998	136.3
Jun-1998	138.2
Jul-1998	137.2
Aug-1998	133.1
Sep-1998	126.4
Oct-1998	119.3
Nov-1998	126.4
Dec-1998	126.7
Jan-1999	128.9
Feb-1999	133.1
Mar-1999	134.0
Apr-1999	135.5
May-1999	137.7
Jun-1999	139.0
Jul-1999	136.2
Aug-1999	136.0
Sep-1999	134.2
Oct-1999	130.5
Nov-1999	137.0
Dec-1999	141.7
Jan-2000	144.7
Feb-2000	140.8
Mar-2000	137.1
Apr-2000	137.7
May-2000	144.7
Jun-2000	139.2
Jul-2000	143.0
Aug-2000	140.8
Sep-2000	142.5
Oct-2000	135.8
Nov-2000	132.6
Dec-2000	128.6
Jan-2001	115.7
Feb-2001	109.2
Mar-2001	116.9
Apr-2001	109.9
May-2001	116.1
Jun-2001	118.9
Jul-2001	116.3
Aug-2001	114.0
Sep-2001	97.0
Oct-2001	85.3
Nov-2001	84.9
Dec-2001	94.6
Jan-2002	97.8
Feb-2002	95.0
Mar-2002	110.7
Apr-2002	108.5
May-2002	110.3
Jun-2002	106.3
Jul-2002	97.4
Aug-2002	94.5
Sep-2002	93.7
Oct-2002	79.6
Nov-2002	84.9
Dec-2002	80.7
Jan-2003	78.8
Feb-2003	64.8
Mar-2003	61.4
Apr-2003	81.0
May-2003	83.6
Jun-2003	83.5
Jul-2003	77.0
Aug-2003	81.7
Sep-2003	77.0
Oct-2003	81.7
Nov-2003	92.5
Dec-2003	94.8
Jan-2004	97.7
Feb-2004	88.5
Mar-2004	88.5
Apr-2004	93.0
May-2004	93.1
Jun-2004	102.8
Jul-2004	105.7
Aug-2004	98.7
Sep-2004	96.7
Oct-2004	92.9
Nov-2004	92.6
Dec-2004	102.7
Jan-2005	105.1
Feb-2005	104.4
Mar-2005	103.0
Apr-2005	97.5
May-2005	103.1
Jun-2005	106.2
Jul-2005	103.6
Aug-2005	105.5
Sep-2005	87.5
Oct-2005	85.2
Nov-2005	98.3
Dec-2005	103.8
Jan-2006	106.8
Feb-2006	102.7
Mar-2006	107.5
Apr-2006	109.8
May-2006	104.7
Jun-2006	105.4
Jul-2006	107.0
Aug-2006	100.2
Sep-2006	105.9
Oct-2006	105.1
Nov-2006	105.3
Dec-2006	110.0
Jan-2007	110.2
Feb-2007	111.2
Mar-2007	108.2
Apr-2007	106.3
May-2007	108.5
Jun-2007	105.3
Jul-2007	111.9
Aug-2007	105.6
Sep-2007	99.5
Oct-2007	95.2
Nov-2007	87.8
Dec-2007	90.6
Jan-2008	87.3
Feb-2008	76.4
Mar-2008	65.9
Apr-2008	62.8
May-2008	58.1
Jun-2008	51.0
Jul-2008	51.9
Aug-2008	58.5
Sep-2008	61.4
Oct-2008	38.8
Nov-2008	44.7
Dec-2008	38.6
Jan-2009	37.4
Feb-2009	25.3
Mar-2009	26.9
Apr-2009	40.8
May-2009	54.8
Jun-2009	49.3
Jul-2009	47.4
Aug-2009	54.5
Sep-2009	53.4
Oct-2009	48.7
Nov-2009	50.6
Dec-2009	52.9