Corrupted file - SOLVED

Hello ,

before i submit this topic , i searched a lot to how recover the skb , all methods i tried are unusefull.

however , im really new to Sketchup and 3D modeling , i was working on steel structure when suddenly the electricity went down , when it’s on again the file is corrupted and wont work ! the 1st massage appears " Not sketchup model " , i tried most of solution here , no use . some of the topic suggest to download " Disk Drill " even thu , it is not working .

what should i do ! it has so many tiny detail " at least for newbie "

no need anymore , while writing this , i tried to recover the existing file using Disk Drill and it worked !!! dont try to recover the deleted file .