This app was mentioned in 3 comments, with an average of 1.33 upvotes
Best random generator in the world, if you're prepared to write your own tables.
Oh, I still have a copy in TreeFlesh™ format.
Anyway, I finished putting together the table. Here's a copy that I'll keep in my DropBox folder for anyone who wants it.
You'll need a copy of Inspiration Pad Pro for your PC (which is free). It should also work on the mobile version (which costs like $3 or so).
I made a script for Inspiration Pad Pro that will roll up a full XGtE history in a single step. Just give it the info it needs (like race and class), click Go!
and you're done.
~~If you are willing to shell out a couple bucks, get the Android app, load the script file onto your phone, and you can make new back-stories anywhere.~~ EDIT: Don't use the mobile app specifically for this table, it doesn't support prompts. Anything that doesn't need info from you will work fine, but the XGtE table needs to use it.