Tip: You can also open graphics files from the File menu. On the File menu, click Open.In the Files of type list, click the graphics file format you want, and then locate the file. Click Open.Most files that you import into Visio drawings as graphic images appear as metafiles. However, bitmap files, such as .dib, .bmp, .pcx, and so on, remain bitmaps in the Visio drawing.