var1  var2  var3
var_with_long_name_which_ruins_alignment  var2 var3

var1                                      var2  var3
var_with_long_name_which_ruins_alignment  var2  var3

column -t file_name

column -t -s $'t' -n file_name

#!/usr/bin/perl

my $delim = 's*ts*';

my %length = ();
my @lines = ();
for my $line (<>) {
    chomp $line;
    my @words = split $delim, $line;
    my $numwords = scalar(@words);
    for my $i (0..$numwords-1) {
        my $maxlen = $length{$i} // 0;
        my $thislen = length($words[$i]);
        $maxlen = ($thislen > $maxlen)? $thislen: $maxlen;
        $length{$i} = $maxlen;
    }
    push @lines, [@words];
}

foreach my $wordsref (@lines) {
    my @words = @$wordsref;
    my $numwords = scalar(@words);
    for my $i (0..$numwords-1) {
        if ($i < $numwords-1) {
            my $fieldlen = $length{$i};
            printf "%-${fieldlen}s ", $words[$i];
        }
        else {
            print $words[$i];
        }
    }
    print "n";
}

$ aligntabs.pl < infile
var1                                     var2 var3
var_with_long_name_which_ruins_alignment var2 var3

column -t -s $'t' /Users/me/data.csv | less --chop-long-lines

sed 's/||/| |/g;s/||/| |/g' filename-here | column -s"|" -t | less -#2 -N -S

zydsld|asl|asd
das|aosdk|dd

zydsld|asl  |asd
das   |aosdk|dd

mlr --inidx --ifs "t" --opprint cat input | tail -n +2

var1                                     var2 var3
var_with_long_name_which_ruins_alignment var2 var3