RLE Files as Wallpaper

Not just BMP, DIB, GIF, JPEG or HTML files, you can also use RLE files as Windows Desktop's Wallpaper. To do so, follow these steps:

Right-click on Windows Desktop, choose Properties, and then click the Background tab. Click on the Browse button, type "*.RLE" (without quotation mark) in the File name box, and then press Enter. Explore your hard disk to find the appropriate RLE files, and finally click OK.