How to read tabbed delimitted csv file line by line using Powershell ?

Raghava Tiruchanur This splits every line by the tab character and fills the $total array with a ; delimiter 

$total=@()
foreach ($line in Get-Content D:\Temp\file.txt) {
    $content=$line.Split("`t") -join ';'
    $total += $content
}

The contents of my test file.txt file are:

test1 test2 test3 test4
test5 test6 test7 test8