Technically the Excel term would be "unhide" if you right-click on an existing tab. Also, if you can get your hands on a smart device/tablet (ipad, android, or other), you can use another website which appears to have the bulk of information about spells, feats, etc.. I think it is dndtools.eu? Hopefully, there is nothing wrong with pointing to that website. It's not the smoothest site, but it has most everything you need through a good search filter.