The answer to your question is 'YES'. Here is how I explain how to do this to my techs... Especially if they need to reload a config and want to TFTP that config across the network...
By default NCM will store configs it backs-up into the following folder structure.... (C:\ProgramData\SolarWinds\NCM\Config-Archive) The programData folder is normally hidden because it is a system folder. So you will need to make sure that showing hidden and system folders is checked for your folder options in Windows operating system.
When you follow that path you will find that NCM will create a folder for each device that is backed up... See the screen shot below
Then inside each device folder NCM will save a copy of each config downloaded in a seperate folder by date... See the screen shot below...
Now you can double click on the date you want and grab the entire config file.... See screen shot below...
Here you can see that the running and startup config have been backed up. Also notice tht the file has an extension of .config. You can either change the extension of the file to match the extension specific to your device or open the file in your favorite text editor and save in a format you need.
From here you have 2 options.. One option is to save the file to your laptop and using the SolarWinds TFTP server tftp the config file to your device OR you can point the tftp server to the proper folder on the NCM server and tftp the file from there.
For our use We always open the file first in our favorite text editor and verify the config then save to our local machines before performing the TFTP of the config..
Hope this helps