Thanks! Can you please check my code snippet and let me know the exact issue while updating unique values after comparison or where i am doing wrong here?

#!/usr/bin/env perl
use strict;
no warnings;
use Spreadsheet::XLSX;
use Spreadsheet::ParseXLSX;
use Excel::Writer::XLSX;

my $appsshhetname = "syslog_-prod";
my $ADdata = "AD-Data";
my $no = "NOt exist";
my $cellA;
my $cellB;
my $cellC;
our @cellA;
our @cellC;
our @redi;
my $responseid;
my $row;
my %params;

my $workbook  = Excel::Writer::XLSX->new( 'C:/PERL/SYNC-OKTA-User-Prof
+ile-Apps-Analysis-Details.xlsx' );
my $worksheet = $workbook->add_worksheet();
my $r = 1;

my $my_format  = $workbook->add_format(
                                            bold    => 1,
                                            color   => 'blue',
                                            size    => 18,
                                                                 );
                                                                 
                                                                  my $
+parser   = Spreadsheet::ParseXLSX->new();
            my $workbook1 = $parser->parse('C:/Users/Documents/Work.xl
+sx');
            
             if ( !defined $workbook1 ) {
                                         die $parser->error(), ".\n";
                                        }

    for my $worksheet1 ( $workbook1->worksheets() ) {
        
        $worksheet->write(0, 0, 'AD Match' , $my_format);
        

                                $worksheet->write(0, 2, 'AD MATCH' , $
+Synchrony_format);
                                $worksheet->write(0, 3, 'Creation Date
+' , $Synchrony_format); 
                                
                                my $appssheet = $worksheet1->get_name(
+);
                                
                                for $row ( $row_min .. $row_max ) {
            for my $col ( $col_min = 0) {
            
            if ( $appssheet eq  $appsshhetname ) {
                my $cell = $worksheet1->get_cell( $row, 1 );
                next unless $cell;
                $cellA = $cell->value();
                #$cellA =~ s/@(.*)//g;
                $cellA =~ s/@(AD.ABC.COM)//g;
                
                if ( $cellA=~ /(\d{9})/ ) {
                    
                    push @cellA, $cellA;
                    
                    #print "DUMP: @cellA";
                } 
                
                
        }
        
        #print "$cellA  \n";
        
        %params = map { $_ => 1 } @cellA;
            
            #print Dumper %params;
            my @uniq = keys %params;
            
            
                        if ( $appssheet eq $ADdata ) {
                    for my $row1 ( $row_min .. $row_max ) {
                    for my $col1 ( $col_min = 1) {
                        my $cellB = $worksheet1->get_cell( $row, 1 );
                next unless $cellB;
                $cellC = $cellB->value();
                #$cellC =~ s/@(AD.ABC.COM)//g;
                #print "2nd Entry :$cellC\n";
                #push @cellC , $cellC;
                if(exists($params{$cellC})) {
                    
                    $worksheet->write($r, 0, $cellC);
                } else {
                    #$worksheet->write($r, 0, $no);
                    }
        
        }
}
    $r += 1;
    }
[download]

You should fix the indentation. Also, SSCCE should compile, but yours doesn't, as it contains several undeclared variables. I was able to fix it, I also created an input XLSX document with two sheets, one of them called AD-Data containing

1    123456789
2    123456790
3    123456791
4    123456792
5    123456793
6    123456794
7    123456795
8    123456796
[download]

and another called syslog_-prod containing

1    2
6    123456789
11    123456790
16    123456791
21    123456792
26    123456793
31    123456794
36    123456795
41    123456796
[download]

Running the edited code
Read more... (2 kB)

I got no errors nor warnings and the output file was created with a coloured header and the following contents in the first column:

123456790
123456791
123456792
123456793
[download]

but formatted as 1.23E+08.

Sorry, what was your question again?

map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

The infinity loop for the below comparison code is my issue. The ADdata sheet first column contain 1-30000 users data and prod_log sheet contain around 501 entries of users those are Nonunique . I will need to collect unique entries from prod_log first column and compare against ADdata sheet first column and update the existing entries of the same file and update the match to other file. The above code seems to be not working. need some suggestion or code snippet.

for my $worksheet1 ( $workbook1->worksheets() ) {
        
        my ( $row_min , $row_max)  = $worksheet1->row_range();
        my ($col_min, $col_max)  = $worksheet1->col_range();
        
        $worksheet->write(0, 0, 'AD Match' , $my_format);
                                $worksheet->write(0, 1, 'APP STATUS' ,
+ $my_format);
                                $worksheet->write(0, 2, 'APP LABEL' , 
+$my_format);
                                    
        
                             my $appssheet = $worksheet1->get_name();
   
   print  "APP Sheet name: $appssheet . \n";
   
       
    for my $row ( $row_min .. $row_max ) {
        for my $col ( $col_min = 0) {
            if ( $appssheet eq $appsshhetname ) {
                my $cell = $worksheet1->get_cell( $row, 0 );
                next unless $cell;

                my $cellA = $cell->value;
                push @cellA, $cellA ;
               # push @cellA, $cellA if $cellA=~ /(\d{9})/;
            }
            my %params = map { $_ => 1 } @cellA;
            my @uniq = keys %params;
            if ( $appssheet eq $ADdata ) {
                for my $row1 ( $row_min .. $row_max ) {
                    for my $col1 ( $col_min = 0) {
                        my $cellB = $worksheet1->get_cell( $row, 0 );
                        next unless $cellB;

                        my $cellC = $cellB->value;
                        $cellC =~ s/@(AD.ABC.COM)//g;
                        print  "USERS: $cellC\n";
                        $worksheet->write($r, 0, $cellC) if exists $pa
+rams{$cellC};
                    }
                }
                $r += 1;
            }
        }
    }
    
    }
[download]