Calc XLS 4.3.1 now available in the App Store…https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=364871720&mt=8

-Fixed an error that would cause a crash when entering data with large worksheets.
-Fixed an error with several functions that caused memory errors.
-Fixed an error with functions with no parameters that failed.
-General improvement in efficiency of 64 bit calculation code. Various bug fixes.