Create an ERROR effect on the fourth frame to indicate an error occurrence, and create a WAIT2 effect on the fifth frame to indicate waiting for writing.
This way, the process is completed: using FLASH to generate a file called guest.txt, and every time new information is written, a new line of information will be added to this txt file.
It's my first time writing a tutorial, I'm not sure if I explained it clearly. If you're confused, check out the source code. Hehe!