Please Help me!! My Shift+Del recovered XLS file is having data in unknow language!

By mistakenly I did shift+del on my excel sheet and then recovered with the help of some software but found the data it displaying is in unknown language like below....


This is very important file for me since the data in it was preparing from long time and there was no backup on it. Please find the attached document and also please help me guys!!!View attachment Copy.xlsx

Any Help guys???

Took a look at it, but honestly, I can't see anything in here that I can fix. I intentionally corrupted it, but the recovery stripped all data from the workbook which doesn't get you any further...