fix bug for autowidth in handling nil cells.
fix bug for autowidth in handling nil cells.
Debiancc/axlsx,bradstewart/axlsx,nilbus/axlsx,kappiah/axlsx,sh-ft/axlsx,woto/axlsx,legitscript/axlsx,romuloceccon/axlsx,clarkcutler/axlsx,pedrogarrett/axlsx,VueOps/axlsx,randym/axlsx,cloudbi/axlsx,alexanderfrankel/axlsx,sr-education/axlsx,raghavendra-prithvi/axlsx,mromulus/axlsx