my ( $row_min, $row_max ) = $worksheet->row_range();
my ( $col_min, $col_max ) = $worksheet->col_range();

for my $row ( $row_min .. $row_max ) {
    my @rowcells = ();              # Initialize array at start of new row
    my $process_flag = 0;           # Initialize processing flag to false
    for my $col ( $col_min .. $col_max ) {

    my $cell = $worksheet->get_cell( $row, $col );
    if ($cell) {
        push @rowcells, $cell;      # Save cell in case we need it
        if($cell->value eq $pattern) 
        {
            $process_flag = 1;      # We will need this line once it's collected
        }
    } else {
        push @rowcells, '';         # Assuming undef is not a useful option
    }
    if ($process_flag)
    {
        # Do something with @rowcells, which now contains the whole line
    }
}