$ wget https://cpan.metacpan.org/authors/id/J/JM/JMCNAMARA/Excel-Writer-XLSX-1.03.tar.gz
$ cpanspec -b Excel-Writer-XLSX-1.03.tar.gz

##</code><code>##

> error: Installed (but unpackaged) file(s) found:
>   /usr/bin/extract_vba
>   /usr/share/man/man1/extract_vba.1.gz

##</code><code>##

%files
%{_mandir}/man1/*
%{_bindir}/*

##</code><code>##

$ rpmbuild -ba perl-Excel-Writer-XLSX.spec --define "_sourcedir $PWD"

##</code><code>##

> Wrote: ~/rpmbuild/SRPMS/perl-Excel-Writer-XLSX-1.03-1.el7.stopllc.src.rpm
> Wrote: ~/rpmbuild/RPMS/noarch/perl-Excel-Writer-XLSX-1.03-1.el7.stopllc.noarch.rpm

##</code><code>##

  sudo yum install ~/rpmbuild/RPMS/noarch/perl-Excel-Writer-XLSX-1.03-1.el7.stopllc.noarch.rpm #only command that needs root permissions

##</code><code>##

  rpm --addsign ~/rpmbuild/RPMS/noarch/perl-Excel-Writer-XLSX-1.03-1.el7.stopllc.noarch.rpm

##</code><code>##

  sudo mkdir -p /var/www/html/yumrepo/ #only first time
  sudo mv ~/rpmbuild/RPMS/noarch/perl-Excel-Writer-XLSX-1.03-1.el7.stopllc.noarch.rpm /var/www/html/yumrepo/
  sudo createrepo /var/www/html/yumrepo          # new or deleting rpms
  sudo createrepo --update /var/www/html/yumrepo # if only adding rpms

##</code><code>##

  /etc/yum.repos.d/my.repo
  [my-repo]
  name=My Repo
  baseurl=http://127.0.0.1/yumrepo/
  enabled=1
  gpgcheck=0

##</code><code>##

  repomanage --keep=2 --old /var/www/html/yumrepo | xargs -P4 -I'{}' /bin/rm '{}` # delete versions older than the last two versions
  createrepo /var/www/html/yumrepo                                                # rebuild the yum index