Luckily they are temps so they can be CCleaned.
First I would just open the logs with something other than notepad or MS word, maybe Notepad++, hopefully whatever these logs are, are actually what they say to be.
The program
Unlocker can show what process has those files locked, so indirectly tells you what is creating them. Unfortunately you need to run Unlocker while a file is being created (to that folder?)
I think AVG Anti Spyware can show you what programs are writing what files to where, as well.