Use 7bit Transfer Over 7bit Connection (Esc8bit)

Check this box to use 7-bit transfer over 7-bit connection (also called Esc8bit).

This checkbox selects whether to strictly use 7-bit characters during file transfers. If checked, file transfers over 7-bit links use only characters between hex 20-7e and ^X, which are printable characters. This field should be unchecked for all 8-bit connections, but checked for most networks.