If you think that a given game contains both EGA and VGA pictures, run both EGA and VGA Viewers on the game directory. If an individual file contains pictures in both formats, it might all show the pictures when you run both Viewers on it.
OK, I'll use the file "PIC1.DAX" from Treasure of the Savage Frontier as an example.
Running DAXVIEW, I see 12 images, all scrambled since DAXVIEW doesn't work with this file.
Running DAXVGA, I see 1 image, which I can tell is the first picture in the file, even though it's scrambled. For some reason, the number 9163 appears when DAXVGA terminates.
Running DAXDUMP, I see that this file contains 66 blocks which are the images and 6 blocks which are too small to be images, only 798 bytes each.
Running Goldbox Explorer, I see all 66 images as they should appear.