Files stored in the UPD format are more commonly known as program update information files. These .upd files are text documents, and its content can be viewed by any text editing or word processing application. Users of Microsoft Windows-based systems can use the Microsoft Notepad application to open and edit these .upd text documents.
Croup (acute laryngotracheobronchitis) on X-ray with steeple sign. Croup, also called acute laryngotracheobronchitis is caused by viral infection of the upper airway usually parainfluenza virus or respiratory syncytial virus (RSV).
i have two straight rays... on light sources.. one towards up and one towards down in my vision?? and feeling pain some time.. what may be possible cause of it?? There are too many causes of rays in vision and Pain to offer a useful answer. You need to see an Eye MD ophthalmologist.  You need to see an Eye MD ophthalmologist.