BASE won't open

I created a database in Base using only provided functionality (i.e., using HSQL). All worked fine for several months, including yesterday, but today the database won’t open. When I tried to open it either through Finder or through the LibreOffice menu, I get a filter selection box. I don’t know what to do. I have not updated either the OS or LibreOffice recently.

OS X 10.6.8


It was not set to save backups. I have a backup that is several days old, but I was hoping to just recover the one that I have so I don’t lose so much data. Is there something other than just a corrupt file that could be going on?

Please pchestek,
take a look to this thread: