If you need to create a directory in your web site, for example a directory to house your images, this is how you can do it. If you transfer a file in the wrong mode it may be damaged. Binary files are not plain text. They contain special instructions embedded in the file that humans are not meant to see, that are used by a program in displaying the file. All image files are binary.
Any file created by a word processor, spreadsheet or presentation program is a binary file.
If you check the box next to Auto you don't have to worry about making sure you have the correct mode selected. Click on the folder tab labeled Extensions . See Figure 3. You'll see that extension appear in the list under the .TXT entry that's there already. Click the OK button to return to the main screen.