Adobe Illustrator version:
AI files
Full editable and resizeble
RGB color
CS 2 + version

Adobe Photoshop version:
PSD files
Size 4000x4000
RGB color
Text editable

You can use this:
Greeting cards design
Typography invitations design
Poster or Flyer design
Labels and Badges
Stickers and Stamps
Post cards
Window Stickers
Signages
Banners
Overlays