The new flag shows a nice performance improvement for XLSX files as well, that is a pleasant surprise 
Perhaps it would be better to throw an exception if a workbook loaded with the KeepUnparsedData is saved?
Kind regards,
Taras
@TarasTielkes,
We are afraid that throwing exception is not a general solution for all users. The problems we have described are not always reproduced for all kind of files. In fact, it is just some possible problems for some template files. For most users and simple files, the re-saved file may be ok. And maybe there are some users who do not mind the warnings or corrupted contents in the resaved files. So we cannot give exception always for all users.
The issues you have found earlier (filed as CELLSJAVA-43002) have been fixed in Aspose.Cells for Java v19.12. This message was posted using Bugs notification tool by ahsaniqbalsidiqui