Hi Iveta,

You can try the below fixes to recover your excel file.

1. Check the Trash
When files are deleted (not permanently) they can be found in the Trash. Go to Trash, locate the files and restore the required file from trash.
Due to sudden Mac shutdown the unsaved files are lost, in such cases chances are bleak that you’ll find the lost files in Trash, however as first line of action the least you can do is Check the Trash.

2. Restore unsaved PowerPoint file from the Temporary folder
You can restore unsaved files from the Temporary folder (“Temp” folder) as well. For instance, while working on a PowerPoint presentation your Mac crashes before saving it, then you can recover the unsaved PowerPoint file with the help of PowerPoint temp files.
Follow these steps to locate PowerPoint temp files:

1. Go to Applications, click Utilities > Terminal
2. In the Terminal windows, type “open $TMPDIR” and hit “Enter”
3. The command opens Temporary files folder. Select the folder named ‘’Temporaryitems’’
4. Under ‘’Temporaryitems” find the required Excel file and restore. Open the PowerPoint file with ‘TextEdit’ because a .tmp does not work with PowerPoint.

For example, the unsaved PowerPoint file will be named ‘PowerPointfile B$123.tmp’

3. Restore Unsaved Word file from AutoRecover folder
AutoRecovery, a built-in feature for Word in Mac is on by default. This implies that your Mac saves (Incremental saving) the files without telling you to manually do so; however, the only consideration is that you ought to initially save the Word document. AutoRecovery saves files when Mac shuts down unexpectedly, for example, power failure.
*If you haven’t saved your Word document once, you’ll lose the unsaved files, whether AutoRecover was enabled or not.
To access AutoRecovery file, which is a hidden file, you need to locate hidden files and folders in order to restore unsaved Word file. With this done, open Finder and type AutoRecover in the Spotlight search box. Once you’ve found the file, open and save it again.
Also, you can find files under:
Users/<username>/Library/Containers/com.microsoft.Word/Data/Library/Preferences/AutoRecovery

You can recover unsaved Office files for Mac with the Terminal command but have to apply your technical sophistication to prevent ambiguity. Furthermore, to recover saved files lost due to accidental deletion, unintentional formatting, and corrupt storage devices, Stellar Phoenix Mac Data Recovery – Professional is the most effective method. This is because the software facilitates straightforward recovery process which not only retrieves lost files with ease but saves your times as well.

With the help of Stellar Phoenix Mac Data Recovery – Professional, you can recover deleted Excel, Word or PowerPoint in just four easy steps:

1. Run the software
2. Make your selection i.e. select the data files and location from where you wish to recover deleted files
3. Scan the specified location
4. Preview and save the recoverable files

I hope this helps.

Regards,
Lokesh