The simple answer to your question is the obvious one:   Manually.   Use a text editor that has a &quot;draw mode&quot; or &quot;draw mode plugin&quot; emacs, or sublime text for example.<p>If you would like to create them programmatically, some languages have modules that help you create them easily.  Off the top of my head PrettyTable in python works quite well.<p><a href="https:&#x2F;&#x2F;pypi.python.org&#x2F;pypi&#x2F;PrettyTable" rel="nofollow">https:&#x2F;&#x2F;pypi.python.org&#x2F;pypi&#x2F;PrettyTable</a><p>Hope this helps.