View File is used to look at an image file in an Image Window. The file you specify will be associated with the window you choose and one section will be loaded. The window will be set up so that whenever a section is requested (by scrolling or using the window as an input source to an application) it is then loaded in to the window. Image data is "cached" or "buffered" so that you can look at much more data than your computer's memory can handle.
When this is switched On, the middle section of the stack is displayed. Otherwise, the first section of the stack is displayed.
Restore the wavelength scale values last used.
For each wavelength, you may specify how the data is to be scaled in the window. The defaults reflect the Minimum and Maximum of the data in the image file. The three numbers in the type-in text boxes are the Minimum, Maximum, and Exponent to be used to scale the data for display.