- File extension "dox"
- File extension "dockzip"
- File extension "dmsp"
- File extension "dlr"
- File extension "dlmcdf"
- File extension "dl2"
- File extension "djv"
- File extension "dj"
- File extension "div"
- File extension "disc"
- File extension "dica18"
- File extension "dhtml"
- File extension "depot"
- File extension "default"
- File extension "dci"
- File extension "dbz"
- File extension "dbe"
- File extension "dau"
- File extension "date"
- File extension "dat2"
- File extension "da0"
- File extension "d08"
- File extension "cwx"
- File extension "cwd"
- File extension "cte"
- File extension "cpathm"
- File extension "control"
- File extension "collection"
- File extension "cnk"
- File extension "cn3"