Ram Prasad and harkeDai, I am not sure what's the case with corrupted folder, follow Birkhe_maila's suggestion for unzipping files. Alternatively, you can use the method as suggested by Dada, write in chhahari.com and copy and paste here. The link is also on the page where you type the message for posting. The only disadvantage of using that is, we get a '?' in places where you use half characters after pasting and submitting in sajha, which makes reading a bit uneasy.