Hi there,
Thanks for your request. I'm afraid the background-image attribute is generally unsupported when importing to Word documents. This is because HTML and document formats are very different. Some features that are available in HTML are not available in MS Word and vice versa.
In this case, HTML allows specifying an image as a background of table cell, but in MS Word there is no such feature. Please note that even MS Word does not import background image of table cell from HTML.
Instead you might want to look into setting an img tag inside the cell and remove any padding from the cell instead. This should be imported properly when inserting the HTML into your document.
If you have any further queries, please feel free to ask.
Thanks
Adam Skelton
Programming Writer
Aspose Auckland Team