Powershell reading multiple variables from text file

I'm quite new to PS, so please don't kill me if the resolution is so easy :) I've tried to find a solution here and in google, but no luck.

This is part of code which don't work as I want

$Contents = Get-Content "Path\test.txt"

foreach($Line in $Contents) {
  $Line = $Line.split(":")[1]
  $s = $line -split ':'
  $RegPath = $s[0]
  $Value_Name = $s[1]
  $Type = $s[2]
  $Value = $s[3]
  Write-host $RegPath $Value_Name $Type $Value
  }

The output from Write-Host is ok, but the main problem is when I want to use those variables after end of foreach loop. If I call any variable after foreach, for example Write-Host $Value_Name it is just empty.

I need to use those variables $RegPath, $Value_Name, $Type, $Value in later code of script. I can't figure how to do it. I would appreciate any help/idea how to do it. Thank you in advance

EDIT: Added test.txt

Just some text to ignore :Software\Test
Just some text to ignore :Test
Just some text to ignore :String
Just some text to ignore :Value

And the output from the first Write-Host in foreach is correct

Software/Test
Test
String
Value

And when I want to use for example just $Value_Name, the output is empty after foreach