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312

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3

I received a .swf (Flash) file and they asked me to modify some things. I don't know (yet) Flash. Is a .swf itself a source file or it is a compiled form of something other.

What is the suggested IDE to work with Flash, where to starts?

+2  A: 

swf is a flash package that can contain, among other things, source code.

You can find free flash decompilers that will disassemble it for you.

Adam Davis
The format is (officially) documented here: http://www.adobe.com/devnet/swf/
Mark Renouf
+3  A: 

SWF is the "compiled" form of a FLA file. The FLA file contains the source, so you can't (easily) edit an SWF file.

Michael Todd
+2  A: 

The swf fileformat has not source code in Action Script (the language which you can develop in Flash).

.fla is the flash filetype, in that you can have movies, images, code... When it is compiled the result is the .swf.

The best way to start with Flash is to learn the Adobe Flash CS (http://www.adobe.com/products/flash/).

Alfred