How to instantiate office 365 excel file using ASPOSE.Cells?

Question

When I am trying to create instance of an excel file (.xlsb format) that is generated from office 365 environment it is throwing error.

 string fileName = "Subhajit_test.xlsb";
 Aspose.Cells.Workbook workbook = new Aspose.Cells.Workbook(fileName);

The above code is throwing following error:

Invalid workbook setting in the xlsb workbook.
   at .?.??()
   at .?.Read( , ?? )
   at ..Read()
   at ..Read(Workbook , LoadOptions )
   at Aspose.Cells.Workbook.?(Stream , LoadOptions , Boolean )
   at Aspose.Cells.Workbook.?(String , LoadOptions )
   at Aspose.Cells.Workbook..ctor(String file)
   at ASPOSE.GetDataFromExcel..ctor(String fileName)
```[enter image description here][1]


  [1]: https://i.stack.imgur.com/uBBrK.png

Answer 1

//Instantiate a workbook.
Workbook workbook = new Workbook();
//Get the first (default) worksheet.
Worksheet sheet = workbook.Worksheets[0];
//Get the cells in the sheet.
Cells cells = sheet.Cells;
//Merging two cells (B5:C5)into a single cell(B5).
cells.Merge(4,1,1,2);
//Put some value into the merged cell.
cells["B5"].PutValue("Hello World!");
//Align the text as Center aligned.
cells["B5"].Style.HorizontalAlignment = TextAlignmentType.Center;
//Save the file.
workbook.Save("d:\\test\\test_book.xls");

For further ref, please check the different wiki topics for your need: http://www.aspose.com/Wiki/Default.aspx/Aspose.Cells/

Answer 2

I have tried to reproduce the problem with creating an instance of an .xlsb file, and it seems working fine on the latest Aspose.Cells version 19.5.
In v19.2 few issues with saving and opening .xlsb files were fixed, so I would recommend you to upgrade to and try the latest versions.

If you still have any problem, kindly provide me a runnable sample code and template .xlsb file, I will check your issue and try to help.
You can also post questions on https://forum.aspose.com/ if any.

Note : I am working as Developer Evangelist at Aspose.