Convert eci to dds Online: eci2dds

You can use Tom's Editor to easily convert images from
ECI Graphic Editor .ECI to Direct Show Surface .DDS.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

ECI

ECI Graphic Editor is an image format with extension ECI.

DDS

DDS are files invented by Microsoft to be used in games, mostly as textures. Images can be compressed to save space but the compression methods defined by DDS are all very fast in terms of coding and decoding.