If you preview a Microsoft Excel 2010 workpaper that contains many extra blank pages, the application may generate an error, as well as lead to further issues when you attempt to send the engagement binder that contains the Excel file to PDF, FileCabinet CS, or GoFileRoom. Refer to this .
When you first open a Microsoft Word or Microsoft Excel session in the Preview portlet, several seconds may elapse while the application creates the preview for the selected workpaper. Following the creation of the initial view, subsequent previews will display faster.
The Workpaper Preview portlet is read-only and can't be edited.