What you attached is not a .txt file, but rather a .tar.gz archive containing a .txt file. After unpacking it Gedit opens it fine:
zcat wmsape-list.txt.tar.gz > wmsape-list.txt.tar tar xf wmsape-list.txt.tar gedit wmsape-list.txt -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gedit in Ubuntu. https://bugs.launchpad.net/bugs/1067915 Title: gedit can't open a txt file To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gedit/+bug/1067915/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs