It looks like Aspose.Words only supports the "type" attribute on ol and ul elements when importing html. The problem that I am having is that popular html editors like TinyMCE only support the style method of changing the type.
Thanks for your inquiry and sorry for the delayed response. Sure, we’ll consider adding support to this ‘list-style-type’ attribute in future. I have logged a new feature request in our bug tracking system. The feature ID is WORDSNET-6795. Your request has also been linked to this issue and you will be notified as soon as it is supported. Sorry for the inconvenience.