by the way
In Excel you can make linebreaks using Strg+Enter (Windows) or Alt+Apple+Enter (Mac).
You can start a new paragraph by using a blank line.
label column you can use HTML und Markdown and
knitr. Here's a very handy reference guide.
Make text bold through
__bold__, make it italic through
All available widgets follow. They should work in all current and fairly many older browsers.