Thanks for using Aspose APIs.
We were able to observe this issue in the output Excel file using the following code and found, output Excel file gets corrupt after opening and re-saving the input Excel file.
output-17.12.3.zip (1.2 MB)
This issue has been logged as
CELLSJAVA-42489 - XLSB file gets corrupt after opening and saving
Workbook wb = new Workbook(dirPath + "orig.xlsb");
wb.save(dirPath + "output-" + CellsHelper.getVersion() + ".xlsb");