"DM" frequently stands for "Direct Message" or "Digital Media." This archive might contain high-resolution design templates, 3D models, or "Vertigo"-themed visual effects (VFX) used in video editing.

WinRAR is the native tool, but 7-Zip is a popular, free alternative.

"Vertigo" is a famous map in tactical shooters like Counter-Strike . "DMs" could refer to "Deathmatch" configurations, assets, or textures for a specific server or mod.

Once installed, right-click the DMs_Vertigo.rar file and select "Extract Here" or "Unzip to..." to access the actual folders and files inside.