In addition to being used as a tool for colonial power, Mixtec writings were admissible legal documents. Mixtec writings during the Colonial period were used to document and legitimate land claims of the hereditary nobility and to preserve and maintain the Mixtec culture.
Mixtec writings functioned not only as instruments of colonial rule but also as a means of documenting and validating the rights of the hereditary nobility. They served as a vital component in preserving and maintaining the Mixtec culture during the Colonial era.