This is done via the steps described in Changing the document being exported to. How the updating works Every table and chart which appears in the Report tree contains an invisible code. When charts and tables are exported form Q to PowerPoint this invisible code is hidden in the exported objects. When Q exports a table or chart to PowerPoint and Excel it scans the documents to see if the code is contained within the document and, if it is found, the option of updating is provided. This updating mechanism is relatively robust and can be used to update a document from multiple Q projects and also to update multiple different documents from a single Q project.