The Export Cell Data button in the Convert Menu brings up the Export Control panel. The panel serves two purposes. First, it allows setting of various parameters and modes which are used globally when writing layout files. Second, it provides a button with which export of cell data to a disk file can be initiated.
The top of the panel contains tabbed pages for GDSII, OASIS, CIF, CGX, and Xic cell files. Clicking the tab exposes the page containing controls appropriate for the format. The parameters set with this panel always apply when writing layout files of the types indicated. In particular, the settings apply when the commands in the File Menu are used to save design data, as well as when the Write File button in this panel is used.