Generate POT file

When I click on “Get POT” I am redirected to new page where is some bunch of text like this:

#!/usr/bin/env php # Translation of the WordPress plugin Custom Categories RSS 0.1 by Jan Bocinec. # Copyright (C) 2010 Jan Bocinec # This file is distributed under the same license as the Custom Categories RSS package. # FIRST AUTHOR , 2010. # #, fuzzy msgid “” msgstr “” “Project-Id-Version: Custom Categories RSS 0.1\n” “Report-Msgid-Bugs-To: https://www.ads-software.com/tag/custom-categories-rss\n” “POT-Creation-Date: 2010-03-22 09:19+0000\n” “PO-Revision-Date: 2010-MO-DA HO:MI+ZONE\n” “Last-Translator: FULL NAME \n” “Language-Team: LANGUAGE \n” “MIME-Version: 1.0\n” “Content-Type: text/plain; charset=utf-8\n” “Content-Transfer-Encoding: 8bit\n” “Plural-Forms: nplurals=INTEGER; plural=EXPRESSION;\n” #: custom-categories-rss.php:75 msgid “RSS from a category” msgid_plural “RSS from the categories” msgstr[0] “” msgstr[1] “” #: custom-categories-rss.php:173 msgid “All RSS from this site” msgstr “” #: custom-categories-rss.php:174 msgid “Submit” msgstr “” #: custom-categories-rss.php:215 msgid “Add Custom Categories RSS Widget to Your Sidebar” msgstr “” #: custom-categories-rss.php:221 msgid “Custom Categories RSS Widget” msgstr “” #: custom-categories-rss.php:274 msgid “Title:” msgstr “” #: custom-categories-rss.php:280 msgid “” “Exclude category IDs (a comma-separated list of categories by unique ID; e.” “g. 3,5,9,16):” msgstr “” #. Plugin Name of the plugin/theme msgid “Custom Categories RSS” msgstr “” #. Plugin URI of the plugin/theme msgid “https://www.wp.sk/” msgstr “” #. Description of the plugin/theme msgid “Grab RSS only from specific categories” msgstr “” #. Author of the plugin/theme msgid “Jan Bocinec” msgstr “” #. Author URI of the plugin/theme msgid “https://www.webikon.sk/” msgstr “”

I suppose I should put it into the file and save it as something.pot but it gets me blank .po file…so what am I doing wrong?

Thank you for your help.