In order to recover your corrupted excel files, please follow the below mentioned procedure:
>> 1. Click Add File to Tree View icon on the toolbar or click File -> Add File to Tree View option from the menu bar.
>> 2. Click Add Folder to Tree View icon on the toolbar or click File -> Add Folder to Tree View option from the menu bar.
>> 3. Click Select Drive icon on the toolbar or click File -> Select Drive option from the menu bar.
>> 4. Preview of recovered file.