First, see if someone else can open it. (If you want to send a small file to me to test, you can email it to me at david [at] indesignsecrets dot com.

If that doesn’t work, you might try this:

DTP File Recovery Service

If you do, let us know how it works!

Thank you for letting me know, Tom… sometimes posts get “stuck.” I just unstuck it. Glad you have had at least partial success. Not sure why the others won’t open at all. Maybe see if someone else can open it?

Randi: Please check to make sure you launched the most recent version of InDesign. The error you’re describing is almost always from accidentally using an earlier version of the program (for example, you may have two versions of InDesign on your computer).

That, of course, is one of the main topics at PePcon (Bridging Print + Digital Publishing) at https://CreativeProWeek.com

The primary question is: How do you want to distribute it? That is, should it be an app (where someone has to install it from a store, such as the iTunes Store), or a web page that is open to everyone, or an EPUB (like a book, either reflowable or fixed layout).

@Christian: Yes, we sell the Tables Superguide in our shop. It was a special promotion for new subscribers.

But you can get 25% off the cost of the guide with your member discount code. (When logged in, click the My Account button at the top of the page, and then click Member Benefits… or click here.)

I don’t think rollovers will work for that. You may be able to do this with a show/hide button feature?
https://creativepro.com/showing-and-hiding-objects-in-interactive-pdf.php

But even then, it may be tricky. Interactive PDF is not nearly as powerful as we all want. :-(