错误:存档以未知的格式或损坏

I have received a zipped file having number of images and subfolders (can trace by opening the file in WinRAR) but on unzipping the file (right click->extract here) got "Error: The archieve is either in unknown format or damaged". I tried extracting the files from WinRAR interface but got the empty extracted folder. Is there any way to get the files from such zipped files. Thanks in AdvanceI have received a zipped file having number of