Will one of your products allow us to merge an MSWord docx file with database fields/bookmarks- without changing the formatting

We are currently using one of your products to merge Word documents with bookmark data and the only way this will work is if we remove all the formatting from the Word document such as the tab stops and style sheets.
Will your newer versions of MSWord allow us to merge documents without changing the format of the original document?
Thank you,
Sonia Coleman

Thanks for your interest in Aspose products. You can merge the documents using Document.AppendDocument method, please see the following link:
You can specifies how formatting is merged when importing content from another document using importFormatMode option:
Best regards,