The Univer Doc and Sheet plugin enhances Obsidian by adding full-featured document and spreadsheet capabilities. Based on the Univer framework, it enables users to create and edit docs and sheets with advanced functionalities. For sheets, features include cell styling, formulas, conditional formatting, and data validation, with upcoming support for charts, tables, and annotations. For docs, it supports lists, paragraph settings, mixed graphics, and multi-column displays, with plans for hyperlinks, tables, and charts. It also includes support for multiple languages (English and Chinese) and allows reading and saving files in formats like xls, xlsx, and xlsm. This plugin is ideal for users seeking an integrated productivity tool within Obsidian.