The Mode page of the Settings dialog affects which files are transferred using ASCII mode.
Figure : Selecting the file transfer mode
File Transfer Mode
Select the default file transfer mode from the following options:
By default all files will be transferred in ASCII mode.
By default all files will be transferred in binary mode.
The files using a file extension specified on the ASCII Extensions list will be transferred in ASCII mode. All other files will be transferred in binary mode.
Files using a file extension specified in the ASCII Extensions list will be transferred using ASCII mode.
Click the New button (at the top right-hand side of the ASCII Extensions list) to add a new file extension to the list. The keyboard shortcut for the New button is the Ins key.
Note that you can use wild cards to specify the file extensions. The ? character matches any 1 character, and the * character matches any 0 or more characters. For example htm* would match both htm and html.
Select a file extension entry from the list and click the Delete button (at the top right-hand side of the ASCII Extensions list) to remove the extension. The keyboard shortcut for the Delete button is the Delete key.