use strict;
use warnings;
use Win32::OLE;

my $xl = Win32::OLE->new('Excel.Application');
$xl->{Visible} = 1;
my $wb = $xl->Workbooks->Add;

for my $nSht (2..$wb->Sheets->{Count}) {
    $wb->Sheets(2)->Delete;
}

my $sht = $wb->Sheets(1);
$sht->Cells(1, 1)->{Value}="Filesystem         1024-blocks      Used A
+vailable Capacity Mounted on";
$sht->Cells(2, 1)->{Value}="/abc/defghi/dskvg00-root   1015704    5465
+16    416760      57% /";
$sht->Cells(3, 1)->{Value}="/abc/defghi/dskvg00-var   2539312   105462
+0   1353636      44% /var";
$sht->Cells(4, 1)->{Value}="/abc/defghi/dskvg00-tmp   1552232     4139
+2   1432208       3% /tmp";
$sht->Cells(5, 1)->{Value}="/abc/defghi/dskvg00-home    126931      56
+93    114685       5% /home";
$sht->Cells(6, 1)->{Value}="/abc/defghi/dskvg00-usr   2539312   124096
+0   1167280      52% /usr";
$sht->Cells(7, 1)->{Value}="/abc/defghi/dskvg00-usrlocal    126931    
+  7146    113232       6% /usr/local";

$sht->Range("A1:A" . $sht->UsedRange->Rows->{Count})->TextToColumns({
    Destination          => $sht->Range("A1"),
    Space                => 1,
    ConsecutiveDelimiter => 1,
});

$sht->UsedRange->Columns->AutoFit;
[download]

Obviously this isn't the way to import the data, but you seem to have solved that already. There are three main changes:

Line 22 calculates the number of rows automatically. There are more complicated ways. Avoid them.

The ConsecutiveDelimiter line treats all spaces as a single delimiter.

The AutoFit line is purely cosmetic.

I can't work out quickly how to stop "Mounted on" being split into 2 columns. If there's anything that can be done about that at generation time, it might help. Or you might insert some code to remove & replace the space. Or live with it. Or something else.

Regards,

John Davies