Oppo's built-in document viewer can be used to view and browse a variety of document formats, including Word, Excel, PDF, and more. The use method is very simple, just open the document viewer application, click the \"file\" button in the upper left corner, select the document file you want to view, you can open and start browsing. During the viewing process, you can swipe the screen to the left or right to turn the page, or you can zoom in or out the contents of the document to see. It should be noted that the document viewer is only a viewing tool and cannot be edited or saved.
It is a tool to view documents on the phone, with this document viewer, you can view documents on the phone, such as Word documents, Excel documents and so on.