Zim does support tables and has support for newlines in cells, but they are basic, no markup, limited manipulation.
If it's non-numeric data and needs to be in tables the best program I've found is treesheets. Absolutely brilliant program.
If it's non-numeric data and needs to be in tables the best program I've found is treesheets. Absolutely brilliant program.
Indeed it still seems a bit limited. Nothing like Firefox's in-built table editor used to be (this is the one in Thunderbird, which is quite nice). I wish they hadn't removed that feature :|
Treesheets is a beautiful program, but I'm too much of a pen-and-paper + plaintext notes person to appreciate it properly.