Questions about flash source file size

Once, in the Macromedia Flash discussion group on the Google Forum, someone mentioned the implementation of the flash effect on a website, because I was curious about the website, then, download its SWF file (it is not difficult to find the SWF file on the webpage now-it will not be known in the future ), then decompile sothink SWF decompiler into Fla (this hacker genie is currently the best decompilation SWF tool-my personal opinion ).

As long as some of the results are effective, I will delete and delete all the useless ones after opening them. I will send them to the person who answers the question after a slight change ......
At this moment, I found a very strange problem-this should be an accidental occurrence. After decompilation, I saw that the size of the FLA file is 312 KB, the size of the FLA file is changed to 340 KB after modification. Isn't that strange ?! I deleted many components. How can I increase the size!

Then I tried to verify that the 312k of the previous machete was not an illusion. I created a new flash file, created several components in it, saved FLA, and wrote down the file. This time I used my notes. You can guess it later, I opened the saved FLA document again, cleared the library, and cleared the scenario. I just deleted the content and saved it ......

Haha, I did not make a mistake before cutting the knife, and the size increased again.

If you don't believe it, try it. Do you know what it means -...... -I don't know how to say it. It is a bad thing. If I edit it frequently, it will be bigger once, and it will be much depressing! Don't you think?

To solve this problem, you can replace it with "Save as" to get rid of its abnormal "fat increase '.

By the way, the tried brother told me in the comment ...... Thank you!

Supplement 2006.4.22
The solution to this problem already exists in Flash 8 Pro: file-Save and compress