HtmlFormatProvider does not maintain all the whitespaces on import even though {style="white-space: pre;"} was set.

It should support {style="white-space: pre-wrap;"} as well.

It can eventually be extended to support all the property's values: normal|nowrap|pre|pre-line|pre-wrap|initial|inherit.

The Matrix property seems to be incorrectly interpreted during the import process.

Wrong calculations of new lines and white spaces between characters due to a wrong calculated character`s BoundingRect.

This results in missing whitespaces and/or characters split between lines.

The tblGrid property should be exported in order to visualize properly the documents in some viewers. For example, LibreOffice doesn't visualize properly tables  without specified width.