I started working on a third tool for Axe Parser developement to complement some things that you can't do oncalc or just very hard.
You will be able to clearly create and manage data and convert it directly into 8xp (maybe appvars too).
I didn't started the data editor yet, but you can already use the converter. Try it:
http://xeverion.com/Tools/Abyte/Convert?v=TEST,Your_Comment,414243
The blue section links to the PHP script. The red section contains 3 necessary arguments:
1) Program name (up to 8 uppercase chars)
2) Comment (up to 42 chars)
3) Data in hexadecimal, the above code means ABC

At the moment, I didn't adapt the checksums though. I would be glad if anyone tried to send such a file to a calc using TI Connect.
TILP ignores the checksum by itself.

Wooo! This looks cool! Is it Appvar or Program? Also doesn't no checksum mean the program is not correctly written?

This seems promising

It converts into open programs right now. TI uses checksums to check if the file does match with its data. The programs are working even with false checksums, but TI Connect probably wont let someone send these programs to a calc.