Read variables from XML

PowerShell Help
1

Is it somehow possible to read variables and values from xml into an PowerShell script without specifying each of them separately?

For example I’ve set the following variables:

arrPostcode @()
arrPostcode += ,@('1234AB', 'City1')
arrPostcode += ,@('4567CD', 'City2')
blnHome = $True
blnNld = $False
intNumbers = 556
strText = 'Something'

And I have a xml file like (can be ajusted when required to get a better result):

See Attachment

And say I want to use the ‘default’ values if the xml file was not found, but if the xml file is found I want to use (replace) the variables and values defined in that xml file.