#!perl
use strict;
use Win32::OLE::Const 'Microsoft Excel';
Win32::OLE->Option(Warn => 3);

my $ex = Win32::OLE->GetActiveObject('Excel.Application')
        || Win32::OLE->new('Excel.Application', 'Quit');
        

my $wb = $ex->Workbooks->Open('c:/temp/Book1.xls') ; 
my $ws = $wb->sheets(1);
my $cell = $ws->Cells(7,2); # b7
$cell->Borders(7)->{LineStyle}  =  xlNone; #left

# save and exit
# this works
$wb->SaveAs( 'c:\\temp\\changedborder.xls' );

# this gives error
#$wb->SaveAs( 'c:/temp/changedborder.xls' );

#C:\//' cannot be accessed. The file may be corrupted, located on a server
#that is not responding, or read-only.
#in32::OLE(0.1709) error 0x800a03ec
#   in METHOD/PROPERTYGET "SaveAs" at borders.pl line 16.