use string.decode() for python 3 compatibility
use string.decode() for python 3 compatibility

jkyeung/XlsxWriter,Thhhza/XlsxWriter,gechong/XlsxWriter,yaojingwu1992/XlsxWriter,seize-the-dave/XlsxWriter,mdeemer/XlsxWriter,yaojingwu1992/XlsxWriter,gechong/XlsxWriter,jmcnamara/XlsxWriter,gechong/XlsxWriter,seize-the-dave/XlsxWriter,jkyeung/XlsxWriter,jvrsantacruz/XlsxWriter,liukaijv/XlsxWriter,Thhhza/XlsxWriter,jkyeung/XlsxWriter,jvrsantacruz/XlsxWriter,applicationdevm/XlsxWriter,mdeemer/XlsxWriter,applicationdevm/XlsxWriter,yaojingwu1992/XlsxWriter,Thhhza/XlsxWriter,applicationdevm/XlsxWriter,jkyeung/XlsxWriter,jvrsantacruz/XlsxWriter,jmcnamara/XlsxWriter,mdeemer/XlsxWriter,liukaijv/XlsxWriter,applicationdevm/XlsxWriter,mdeemer/XlsxWriter,jvrsantacruz/XlsxWriter,seize-the-dave/XlsxWriter,gechong/XlsxWriter,yaojingwu1992/XlsxWriter,jmcnamara/XlsxWriter,jmcnamara/XlsxWriter,liukaijv/XlsxWriter,liukaijv/XlsxWriter,Thhhza/XlsxWriter,seize-the-dave/XlsxWriter