File Preview
When you are working with files found by a scan, you can see more information about your currently selected file in the below panel. You can see the file content in several different formats each displaying the file contents in a different way.
Your view options are :
Image Preview
This option will display the file as an image for both normal image files and RAW image files. If the file does not contain an image then a default image is displayed and a message indicates that the file does not appear to be an image
ASCII Preview
This option will display the file as text file.The program tries to interpret the data inside the file as text,if the file is not in text format then you may see "strange" characters, this is not a malfunction. Note: ASCII is just a technical term for the way that text is stored internally in your computer.
Hex Dump This option will display the file as Hexadecimal value on the left and the character interpretation on the far left. Hexadecimal is a special numbering system that your computer uses to store all data. You may be familiar with the term "byte" a Byte is broken into two numbers in Hexadecimal each number represents each half of the byte. All data in a computer can be viewed in this way as it is the "native" data representation in the computer. Unlike the ASCII and image view, which try to interpret the data as text or picture, this view is technical glimpse into the raw data of the file. This view can be useful for programmers and other technical users who can interpret the raw data displayed here. Sometimes you can see text embedded in programs or other files that are not documents.