[WriteLog] After contest log entry problem

[N5MT at aol.com]

I corrupted a Writelog contest log without a backup. 
I have a printed log of the contest so I want to reenter the log so I  can 
send in as a  LoTW file. 
 
What can I do with the date to go back to the contest date?  Am I  going to 
have to change the date on the PC ?  Hope there is a better  solution. 
Any other tips to save  any other editing while entering each Q.
 
Its the 10 Mtr contest so the freq will stay on the same band.  No CW  only 
SSB.
About 200 Q's to reenter.   
 
tnx 73 Mike  N5MT