You'll need an unzipping program to open most of these files. I recommend WinZip.
Go get WinZip from www.winzip.com

• Desktop Themes (For use with Microsoft Plus.):
  Note: Desktop Themes can be substituted for Microsoft Plus.
  1. The New Chrono Trigger Desktop Theme
     New Optimized Icons and Cursors. (Wallpaper is 1024x768.)
     
  2. Old Chrono Trigger Desktop Theme Set
     5 Themes in one download. (Each theme has it's own wallpaper and colour settings. Wallpapers are 800x600.)
     

• Chrono Trigger Midi Soundtrack
  38 Midi Files named as The Chrono Trigger Original Soundtrack.
• Chrono Trigger Sound Effects
  52 Wav Files.
• Chrono Trigger Icon Set
  56 True Colour Icons.
• Chrono Trigger Animated Cursor Set
  33 Animated Cursors.
• Optimized Chrono Trigger Animated Cursor Set
  17 Animated Cursors. These cursors were made/redone by my friend Ryan. He's extremely good with sprite graphics.
• Chrono Trigger Scene Mural Wallpaper
  A mural of some of the scenic pictures drawn for Chrono Trigger.
• Chrono Trigger Characters Mural Wallpaper
  A wallpaper made with all the character pictures I could find.