What steps will reproduce the problem? 1. Load Excel workbook 2. WorkBook.Load Fails 3. byte[] bookdata = doc.GetStreamData("Workbook"); returns a null

What is the expected output? What do you see instead? Expect it to load, instead get an exception raised about "Buffer cannot be null.\r\nParameter name: buffer". It is raised in Workbook Load at this line

WorkbookDecoder.Decode(new MemoryStream(bookdata));

Because bookdata is null from the previous line.

Checking GetStreamData("Workbook"), I see in this spreadsheet, it is actually "Book" not "Workbook", but even changing that causes some errors then when reading + record {ExcelLibrary.BinaryFileFormat.FONT} ExcelLibrary.BinaryFileFormat.Record {ExcelLibrary.BinaryFileFormat.FONT}

What version of the product are you using? On what operating system? Latest April DLL, as well as tried building from source.

Please provide any additional information below.

i have the same problem

I have same problem

I have the same. Have anybody solved that problem?