Hello there!
I have been working on a 10-page file in X7 and this morning I tried opening it only to find that DRAW kept "processing" it for almost 20 minutes. At some point, I realized I could open menus and when I tried clicking on "close" DRAW froze and shut down.
I tried online tools for fixing corrupted files but they kept saying that the file is "empty" or "unreadable". I also tried to open it in X8 on a colleague's PC and in Illustrator but they all said pretty much the same thing.
I know that the file is not empty because I opened it with 7zip and looked around the *.xml and *.dat files and I can see my texts and also my preview pages, so I think it has to do with DRAW not being able to compose the ingredients.
I' m desperate for help, because I've been working on that file for quite some time.
Here's a link where you can download it if you want to take a look.
drive.google.com/.../view
I think that there is some problem with the styles, but I will not post more until I think I understand it better.
I CAN open the file in CorelDRAW 2018, but saving it back to X7 format doesn't seem to solve the problem.
In the .CDR zip archive, in the Styles folder, there is a document.cdss file. That is the Styles information, and is a plain text file.
There is a Style Set in there that is named "Basic". If I change the name of that Style Set to "BasicFoo", then put that modified document.cdss file into the .CDR file, I get a .CDR file that can be opened in X7, X8, and 2018:
MANUAL NEAT_el_v1.4 (renamed Basic StyleSet).cdr.
I don't know what renaming that Style Set means with respect to how things are formatted in your document, but it might give you something to work with.