$table = @( @{ColumnA="Able"; ColumnB=1},
@{ColumnA="Baker"; ColumnB=2},
@{ColumnA="Charlie"; ColumnB=3} )
$table | ForEach {[PSCustomObject]$_} | Format-Table -AutoSize
ColumnA ColumnB
------- -------
Able 1
Baker 2
Charlie 3