DO ANYONE KNOW HOW TO ONEN OR READ A RES ( .res ) FILE ? IF YES , PLEASE TELL ME , THX A LOT ^^

A RES file is simply a text file, containing a list of other files. The RES file goes along with your compiled BSP file. A RES file is used to instruct the Half-Life server to send the specified files to clients that do not have your custom art or sounds. The RES file must be named just like your BSP file, except with a .RES extension. So if your map was named cs_mymap.bsp, you would create a RES file called cs_mymap.res. The RES file must be in the same directory as your BSP... in other words, the maps directory under the mod.