Switching to a new UI design can be challenging for most software users, particularly when you've grown accustomed to the previous one over time. The Office suite has undergone numerous transformations throughout its history. While it's natural for popular software to adapt and evolve, some changes inevitably spark debate among users.

Power-user is a top-level productivity add-on for Microsoft PowerPoint and Excel, developed by Power-user SAS from France. It can help users quickly create and edit PowerPoint and Excel files, so as to increase their productivity by as much as 40 percent, reduce the amount of time required to work and dramatically increase the work efficiency.

Office Tab is an extension plugin specially designed for Microsoft Office, used to easily implement Office's tab effects - let our Office suites have multi-window tabs' style and function (tabbed browsing, reading, editing, and managing the documents).