Can't open ODS file after crash

I was editing a spreadsheet when Calc crashed.

When I attempt to re-open the file I get this message:

LibreOffice will attempt to recover the state of the files you were working on before it crashed. Click ‘Recover Selected’ to begin the process, or click ‘Discard’ to cancel the recovery.

If I click ‘Recover Selected’ and enter the password, I get this message:

Due to an error, LibreOffice crashed. All the files you are working on will now be saved. The next time LibreOffice is launched, your files are recovered automatically.

Clicking OK just brings up the Document Recovery dialogue again.

If I click Discard All LibreOffice shows the Recent Documents windows, but the file does not open.

The file header starts with 504B0304.
I tried to fix the file with ODFRepar. When I open the repaired file Calc says the password is incorrect. What else can I try to fix this file?
When Calc crashed another file was also corrupted–that one opens. But the conditional formats are on the wrong worksheet.

if it contains nothing confidential, you can try to post it in a Bug Report

Try this.