If you don't encrypt them set up a wamp server and set the save location in there.
This means you can access them from any web browser as long as you open the correct ports and your computer is on.
Doing this way means you just need to go to xxx.xxx.xxx.xxx:xxxx/chatlogs/contact@live.com and view them as any other html file. However as said above the down sides may be your computer must be on, and the ports open.
/ 
