file routines

This menu is for manipulating image files. The options are:
- Directories
- This menu lets you move from one disk directory to another.
- Delete
- This menu lets you delete images from disk or purge multiple versions of images.
- Display Info
- This menu lets you display auxiliary information stored in the image header.
- Import Images
- This menu lets you convert various foreign-format images to IcoMetrics images.
- Export Images
- This menu lets you convert IcoMetrics images into various foreign image file formats.