Best way to create documents from .csv [Ask HN]

My team is developing an open source early education curriculum. Our current first month's first draft is a word document that's about 120 pages long. There are several unique pages and several pages with the same formatting. As you can imagine, any changes to the format of the document are very time consuming and reformatting will only grow in difficulty as more months of curriculum are added. I know of a python package which I can use to create a document from a .csv, but are there better tools for our team's use case?