Freeplane can import OPML using an addd-on and it runs on Linux. https://github.com/adxsoft/ImportOPMLtoselectednode.addon

Hi pedter, welcome to our community! Notes in tables makes me think of TreeSheets https://strlen.com/treesheets/ It has versions for Windows and Linux, but I don't know if it will import the One...

The forum needs a 'reset password' option. The redesign locked me out of my account (Cyganet) and declared my password invalid. I sent two messages via the 'Contact' option but received no reply. So I...