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…...bin stub — Excel rebuilds calc chain on open...contains zero c entries, so when Excel opens the file it has to rebuild...