Hi,
In Aspose.Cells for .NET 26.4.0, Workbook.Save(path, new XlsbSaveOptions()) writes a 6-byte stub for xl/calcChain.bin regardless of how many formula cells the workbook contains. The same workbook saved as XLSX via n…...entries, so when Excel opens the file it has to rebuild the entire...AsposeXlsbCalcChainR.zip (29.7 KB) For comparison, the customer workbook that...