how to open zpr file in zbrush?
['Open. The File Open button will open an previously saved Project (ZPR format). ... ', 'SaveAs. The Save As button will save everything that is in the document into a Project. ... ', 'Revert. The Revert button restores the current Project to its condition when it was last saved. ... ', 'UndoHistory. ... ', 'Lightbox>Projects. ... ', 'Project Notes. ... ', 'Edit. ... ', 'Open.']