Why are odf documents opened in docx?

Today I was distracted and hit delete when I aught to have hit save as for a new file name.

Open Office, which I am currently using because my MS Office subscription could not be paid, is an odf file extension.

When Recuva finds the docs, previously saved versions I'm guessing, and I have them sent to a folder on the desk top, they all present at Word documents, which won't open, rather than the Open Office documents, which will open.

I spent 3 hours creating that document. After changing the file name I hit delete rather than save as. It must be recovered. Please help me "get it back".

thread closed, please stick to your thread in recuva bugs.