Accidentally messed up the order of html files

[Sirtel]

While making some edits to an epub in Sigil, I think I accidentally dragged a html file to the wrong place. The problem is, I didn't notice it at the time and got no warning either. Now I no longer remember which epub it was (I edited a lot of them in the past few days). Is there a way to check the order of html files in epubs without having to go over everything manually, one by one (a real pain, as some books have over a hundred of html files)? In the calibre editor? In Sigil? A Calibre plugin? Something else? I looked, but have found nothing so far. Epubcheck gave me nothing on this. The Quality Check plugin for Calibre has no option for this either.

[Turtle91]

When you drag a file using the book browser Sigil will automatically update the opf to note the change. So, no luck with any kind of automated check of the epubs.

What I do is name the files something that makes sense. Instead of some-long-number.html I would give it:

cover.html
title.html
epigraph.html
Ch01.html
Ch02.html
...
Ch99.html
AboutheAuthor.html
Alsoby.html
Copyright.html

Then I could easily see if one of the files was out of position.