The file reference 0x3000000003d66

Hi,

My hard drive has performed recently a chkdsk at boot. Since then, I cannot find an excel file named mdp.xlsx.
I have the following lines appearing in the bootex.log created after completion of chkdsk:

The file reference 0x3000000003d66 of index entry mdp.xlsx of index $I30
with parent 0x39e8 is not the same as 0x1000000003d66.
Deleting index entry mdp.xlsx in index $I30 of file 14824.
The file reference 0x3000000003d66 of index entry MDP~1.XLS of index $I30
with parent 0x39e8 is not the same as 0x1000000003d66.
Deleting index entry MDP~1.XLS in index $I30 of file 14824.

I was wondering whether this would help me. Thanks for letting me know what is the best path to follow to recover this file.