Adobe 38039927 - Fireworks CS3 - PC Extended User Manual page 306

ADOBE FIREWORKS CS3 302
Extending Guide
Arguments
The name of the file, which is expressed as a file://URL, whose extension should be changed to .png.
fileURL
Returns
A string that contains the file URL with a .png extension.
Description
Ensures that the specified file URL ends in a .png extension. Does not affect the name of the file on disk.
Example
The following command returns " ".
file:///My Documents/image01.png
document.makeGoodNativeFilePath("file:///My Documents/image01.png")