Opening and saving image files
From the main menu:

Click on File to display the file menu:

then click on Open,
or on the main toolbar

click on the open button:

to open an image file dialog:

Holding down the Alt key and typing F will also open the menu and pressing Enter on Open will also show the dialog.
Select the directory and file to be opened. The programme supports a large variety of image files These may be obtained from a scanner or from other sources such as a digital camera.
When scanning diapositives or colour negatives, use the highest colour
depth resolution of which the scanner is capable so that the full
dynamic density range of the film is available to CastCor. This
usually implies scanning to a Tiff (Tagged Image File Format) file. If
you are planning to treat images from a digital camera, you may choose
the RAW format for the camera if available.
The file menu shows
the names of the last four images scanned, and to re-open one of them
for further treatment, click on the appropriate name. This name will
then be moved to the top of the list.
If you have one or more scanners attached to your machine, you can scan an image directly to CastCor. Click on Select Scanner
and choose the desired scanner from the list which will contain the
names of all attached scanners if there are more than one. For example:

If the scanner is not turned on, you may receive an error message when you attempt to select it.
Click on Acquire
to start the scanning process. If the chosen scanner supports it,
choose the highest available colour depth from the scan software's menu:

To save results from the treated image, click on Save on the File menu or hold down the Alt key and type S or click the Save button on the main toolbar.

to view the save
dialog. Select a name and file type. Some file types have advanced
options which permit setting a variety of options. Click on the
Advanced button to select something other than the default for the
chosen type.

Note:
All operations are
applied only to the small right-hand image, but not to the original
input file. If you have carried out a number of treatment steps in
sequence, the green gauge at the bottom of the programme's dialog will
display the progress of treatment on the full-sized image. Only after
this has been completed will you be asked to provide a name for saving
after you open the Save dialog and save either to the original
file, thus overwriting it (not recommended), or to a file with a new
name which you must choose.
If you continue
working on the same image and save again, all the changes applied since
the input file was opened will be applied to the output. If you want to
clear the stack of changes and start again, click the Reset button. You don't have to reload the original file.