Corrupted cdr file will not open

I have a file about 10 MEG with simple bitmap images & text that I created for a stamp album that will not open. Nothing fancy-smancy.
Tried opening the backup, no luck. (I set my options to create my backup every 5 min.)
Can't find the temp file. Tried changing the original to a cdt file,  also tmp but no luck. Also tried the import, nothing doing.
Also tried to unzip, and again no luck.
I spent 5 hours on the web looking for solutions, and even downloaded the CDR repair kit software, but no go.
Lots of work went into creating the file. Any ideas?