Office documents have been viewed as unstructured documents. Metadata has only been associated with an entire document, not the elements that constitute it. With the long-term aim of facilitating the development of usefully standard mechanisms by which to give structure to semantically significant elements of documents, a working group on document semantic support has been established within an ISO subcommittee (SC 34) on document description and processing languages to investigate how experts are generating, capturing, organizing, attaching, and storing semantically important elements of documents. Our Working Group (WG 9) investigates methods for associating semantic metadata with office documents. The aim of our presentation will be to introduce our work and engage participants at NISO Plus 2022 in a discussion about how best to provide what we are calling “semantic support” to the diversity of people and communities that use office documents.