most of country fiscal year calculate from April to March of next and year data comes like January to Dec.

pattern should be like this 

April to Dec. than use the Jan to Mar data than there is no change in analysis

Many software packages (including Excel) will allow you to "convert" one calendar type to another.

For Excel 

http://www.excel-university.com/create-fiscal-year-periods-with-vlookup/

with this link you can easily convert it in excel

For SAP

With the fiscal year conversion, you can adjust the SAP fiscal year to the calendar year. This is necessary when you have introduced a shortened fiscal year and now the SAP fiscal year precedes the calendar year.

Example Example

In the past, your company's fiscal year started on October 1 and ended on September 30. Now you want the fiscal year to coincide with the calendar year. To do this, you introduce a shortened fiscal year that starts on October 1 and ends on December 31 of the same year. This would appear as follows for the years 2010 to 2012:

SAP fiscal year 2011: 2010-10-01 to 2011-09-30

SAP fiscal year 2012: 2011-10-01 to 2011-12-31 (shortened fiscal year)

SAP fiscal year 2013: 2012-01-01 to 2012-12-31

In calendar year 2012, fiscal year 2013 is already valid in the SAP system, in calendar year 2013, the fiscal year 2014 and so on. You can remove this difference, which can be quite puzzling and inconvenient for users. After the conversion, the fiscal year will correspond to the calendar year again. All past fiscal years have been reduced by the value 1.

Time                                           Before the Conversion    After the Conversion

2009-10-01 to 2010-09-30    Fiscal year 2009               Fiscal year 2010

2010-10-01 to 2011-09-30    Fiscal year 2011               Fiscal year 2010

2011-10-01 to 2011-12-31    Fiscal year 2012               Fiscal year 2011

2012-01-01 to 2012-12-31    Fiscal year 2013               Fiscal year 2012

2013-01-01 to 2013-12-31    Fiscal year 2014               Fiscal year 2013