Release Notes: This release includes a useful feature for checking if a column is blank. It also makes enhancements to the LightCells APIs so that you can now create huge XLSX files quickly. It also enhances the formula calculation engine and sorts out a few formulas. The Excel-to-PDF feature has been improved. Custom Number format: "dd.MM.yyyy" is now saved correctly for ODS files and the ROUND function now rounds a value greater than 922337.20.