Windows Backup question

I back up files and image every week using Windows Backup (Win7x64) to a WD 500GB external disc. I can see the backed-up files if I click 'Restore files' in the Backup Center on the original computer. I wanted to extract one of the data files to another computer but can't find a way to see them. I have a feeling that Windows Backup will only recognise the original computer and backup to that one; or is there a way of extracting the data files to another? I can see why that would have to happen with the image, but surely not the data files! Of course, I've copied the file to a USB stick and done it that way but I'm just curious about the original issue.

You should be able to crack open the Windows Backup file and retrieve the files, iirc. They are either VHD or Zip , both which can be mounted or opened with Windows.

Windows backup could be described as a bit delicate though, so be careful before you do things like this to ensure that in a disaster event, your backup data is sound.