Select, by file extension, file types that should always be transferred in ASCII mode.
Expand Transfer.
Select ASCII Types.
Type the file extension for files you want to transfer in ASCII mode in this box.
Select Add to add the extension to the list.
Select Remove to delete the selected extension from the list.
Note:
You can specify a Transfer type for an individual site by highlighting the site in the Site Manager, clicking the Type tab, and choosing from the Transfer list. Use Global Settings is the default transfer type, and sends files in the mode specified for each file's extension in this dialog. All extensions are sent in binary mode unless they are listed in the ASCII Extensions list.