version 0.7.9 (2021-Aug-29)
 * add support for sheetname argument to convert function

version 0.7.8 (2021-Apr-19):
 * bug fixes

version 0.7.7 (2020-Jun-23):
version 0.7.6 (2019-Mar-21):
  * reverting id field for sheet indexing

version 0.7.5 (2019-Mar-7):
  * Passing "sheets_order" test case. Added support for workbook relations.
  * add floadformat to README
  * Updated the date formats to current ms excel
  * read and use [Content_Types].xml
  * Fix for missing cell ids ("r" attribute in <c/>)
  * Refactoring, etc.

version 0.7.4 (2018-Jun-5):

version 0.7.3 (2017-May-20):
  * Support for "xl/worksheets/worksheet.xml"
  * Date format "float" leaves value as simple numeric.
  * bug fixes by Eudes du Rivau

version 0.7.2 (2015-Apr-17):
  * bug fixes

version 0.7.1 (2015-Feb-10):
  * more date formats
  * other fixes

version 0.7 (2014-Jan-28):
  * hyperlinks support

version 0.6 (2013-Dec-7):
  * python 2.4 support
  * python 3.3 support
  * setuptools
  * escape \t\r\n characters option
  * bug fixes

version 
  * seperate csv files for each sheet (#37)
  * #38 issue fix

version 0.5 (2013-Jun-6):
  * Select EOL terminator according to OS (#32)
  * floating errors (#28)
  * inlineStr support (#24)
  * Add man/ directory for manual page (#23)
  * Misinterpretation of & (#15)
  and other fixes

version 0.20 (2012-Aug-7)

version 0.19 (2012-May-17):
  * issue #12 fix, some kind of unknown excel app version

version 0.18 (2012-Feb-19):
  * Support for multi-region shared-strings (merge #11)

version 0.17 (2012-Feb-14):
  * issue #10 fix

version 0.16 (2011-Oct-26):
  * new date format

version 0.15 (2011-Sep-16):
  * datetime 1904 format support
  * datetime format bug fix

version 0.14 (2011-jul-15):
  * recursively convert the xlsx files in a directory to csv (Zhehao Mao's patch)

version 0.131 (2011-apr-19):
  * skip empty lines option

version 0.13 (2011-jan-16):
  * sheet no bug fix

version 0.12 (2010-dec-21):
  * fix last column empty bug

version 0.11 (2010-sep-13):
  * no numFmt bugfix

version 0.1 (2010-sep-12):
  * better support for date/time formats
  * two letter columns bug fixed
  * sheets support added
  * unicode fix
  * boolean type
  - thanks to Neil Killeen

version 0.0 (2010-jun-11):
  * xlsx to csv converter first release