I was going trough some of the projects where I use Aspose cells today and upgraded the .dll files, but suddenly there was a problem reading a workbook, it “worked” on 4.0.1.0 but not on 4.0.2.0 returning this exception. …...(Stream Ԏ) at Aspose.Cells.Workbook.Open(Stream stream) at...@asmundg , Aspose.Cells also provides support (read/write) for older...