Can't Open File After Session Access mistake

[#1]

While Editing I have mistakenly done something to session access and I can't open it and unfortunately the backup was done after editing.

is there any way to get the file?

I have already tried to open it without security and data. but no Luck! 

[alexandros17]

Unfortunately I think that the document is lost ... sorry

[Gysbert_Wassenaar]

If you don't have a backup then you've locked yourself out permanently. You'll have to recreate the document.