It's worth a try though as I don't know for sure, if it was gonna work you would have to go to where ciV saves games (default) C:/Users/Your Username/My Documents/My Games/Sid Meier's Civilization 5/Saves and find your save game, hopefully loading it in the WorldBuilder as a scenario or something.
There might be some way to edit the raw code of the save file as well, however you'd need something more than just notepad to do that as they just show up as garbled nonsense in notepad. Even then you would have to understand what all the code meant.
Alternatively the game is default set to autosave every 10 turns and to keep 10 autosaves (I think). You could reload from an autosave (click autosave up the top in the load game window). If you left click on the save once it will tell you what civ, gamespeed, era, year, turn number etc year you were in like a normal save. The game names the autosaves to the year you were in at that save by default.
Also Zetler, that's pretty impressive, 6 years as a lurker.