It is March 2020. I am using a reasonably up to date version of Sigil but cannot see where to find out what version it is.
It took me about 20 mins to scroll down to select all the bad code, so I don't want to close it to see if I can find out,as I don't know if I will mess us what I have done if I close without validating. (I downloaded it in the last few months).
An old version has the green tick validation button. However, this version doesn’t (at least for me).
When I go to Tools to find ‘Tools > Validate EPUB with Flightcrew’
(as here
https://guides.vpl.ca/c.php?g=702449&p=5000992 it only has ‘ Validate stylesheets with W3C ‘ ----- and not ‘EPUB with Flightcrew ’).
1) Question - Must I validate for the Word doc to be turned into a ePub?
2) How do I validate, if so?