One of the many web sites I’ve scattered everywhere is RSS Gizmos ( https://rssgizmos.com/ ) which has a number of tools for discovering, creating, and using RSS. One of them is OPML Peeler, which takes an OPML file (OPML stands for Outline Processor Markup Language; an OPML file in this context is basically a bundle of RSS feeds) and “unpeels” it into an HTML list of feeds with an option to download the fees as a comma-delimited file (CSV file).
This morning I got a message from someone on Mastodon about the OPML Peeler. They wanted to use it but their OPML files were local and the Peeler expects the OPML file from a Web site. I had a little time this morning so I redid the Peeler so it accepts both local OPML files and files from Web site. I also made the parser a little more forgiving so it doesn’t curl up and die at the sight of an unencoded ampersand. I need a little more time than that to integrate it into the web site but the updated OPML Peeler is available at https://rssgizmos.com/opml2.html .

Like the rest of RSSGizmos.com, the OPML Peeler is free to use and free of ads. I hope you find it useful.