Possible to generate html/text/web version of calendar for sharing?
PDF
You can easily create a PDF of your calendar and attach that PDF file:

Open Calendar.app and go to the right date on your calendar
'File' -&gt; 'Print' (or CommandP)
Select your settings and press 'Continue'
Press the button in the lower left corner that says 'PDF'
Now you can 'Save as PDF' or 'Email PDF'

PNG
You can also make a quick and dirty screenshot of your calendar:

Open Calendar.app and go to the right date on your calendar
Press CommandShift4, now release the keys and press Spacebar. Now a camera icon appears.
Click on your calendar once using the camera icon. A screenshot will be saved on your Desktop which you can attach to your email.