The application to use for viewing files that require a component to view them. The parameter %s will be replaced by the file's URIs, the parameter %c will be replaced by the component IID.
Y rhaglen i'w ddefnyddio i bori ffeiliau sydd angen cydran er mwyn eu gwylio. Amnewidir y paramedr %s gan URI y ffeil, ac amnewidir y paramedr %c gan IID y gydran.