dds The .dds extension file is a DirectDraw Surface format file developed by Microsoft and is used by the multimedia application Microsoft DirectX to store graphics and data in the compressed and uncompressed form.
cur .cur is the Windows Cursor (.cur) files. It is a static windows cursor file that is a still image that is identical to .ico (Icon) files in most ways aside from the file extensions that exists. It is used like the .ico files which are to view images in a different way. ANI formatted files, even in Windows 7 can view this type of file. It contains file header, info headers, and cursor data.