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The CSV exporter plugin should allow you to do that. It's only available for Elgg 1.9 or newer here on the community site (https://elgg.org/plugins/1939447) but there's a version for 1.8 available at https://github.com/ColdTrick/csv_exporter/releases/tag/v1.0.
But you might first set up the cronjobs again on your new server as you mentioned that cronjobs no longer work (https://elgg.org/discussion/view/2630047/garbage-collector-15#elgg-object-2630262) and the newsletter plugin might also need a cronjob to work.
Many thanks for CSV exporter. It works perfectly. Now if the Newsletter continues not to work, I can email users from a stand alone script.
iionly, I have finally gotten around the Newsletter script problem by using an alternate mass mailing plugin - Galli Mass Mailer. It works OK with the 5 min cron. I have been able to inform my users of our upgrade to SSL so they can change their bookmark for my site.
I don't think that there's any "cron library" outdated. But you have most likely just not set up the cronjobs on your new server that are required by Elgg. That's why the garbagecollector and logrotate jobs are not triggered anymore. And maybe also why the newsletter plugin is no longer working (https://elgg.org/discussion/view/2630135/extract-email-addresses-as-csv).
Read http://learn.elgg.org/en/stable/admin/cron.html and set up the cronjobs (for example in CPanel or whatever used on your server to such administrative tasks).
Thanks for your suggestions, iionly. According to Croncheck in my Admin Panel the five minute cron for the Newsletter script has been running fine since server transfer. My server admin also added a one minute and fifteen minute cron and they worked fine. The weekly cron for garbagecollector and logrotate has never worked and yesterday I changed the option to "monthly" also editing the cron in C-Panel. It was set to trigger at midnight but did not work. The weekly cron that worked since 2013 is:
0=0 20 * * 2 /usr/bin/wget --spider --output-document=/dev/null http://www.westminstercollegeforum.net/wcf/cron/weekly >/dev/null 2>&1
I'll look into the suggestions and links you sent. Many thanks.