I have just spent ours of debugging SQL code in Querybilder and ended up commenting out some lines to get it through Visualize Query. Voila, TDP deletes the lines I commented without me noticing and I was stupid enough to save the file. How do I restore the file? TDP saves files every 5 minutes for recovery so I expect to be able to find a backup somewhere? Where are these located?
this is really bad situation and unfortunately I am afraid we won't be able to help you much. You are right that we creating recovery file and these files are located in our application folder:
c:\Users\ YOUR_USER \AppData\Roaming\Quest Software\Toad Data Point 4.3\Document Recovery
But we clean it when you correctly close Toad and all files are saved. You can take a look on this location and will see.