Hi LK
Every once in a while someone comes along and posts a truly thought-provoking topic. Your is one of those and I thank you for it.
Cloud vs local file storage is an interesting topic in itself. What are the benefits? What are the risks? What is the right approach to take? What happens to your files when something unexpected goes wrong (power failure, you dropped the device, flood, internet
goes down, etc.)? In particular, what happens to files that are open when something unexpected goes wrong?
Google solves the location problem by allowing only cloud locations. OpenOffice/LibreOffice allows local storage and OS supported file locations. Microsoft allows both cloud and local locations, which adds complexity.
I know less about how Microsoft and Google deal with the back-end handling of open documents in the cloud than I do about documents that are saved locally. I assume something similar is going on within the servers of cloud storage systems. This support article
describes what happens with Word documents in Word for Windows. A similar set of temporary files is used on the Mac. This support article presumes that the document was saved locally:
Description of how Word creates temporary files
When you make a new document, workbook or PowerPoint presentation, that stays in RAM until you save the file somewhere. If you close the document without having saved it anywhere, it's simply lost forever.
Once it has been saved someplace (in the cloud or locally) what you see on your screen where you edit is a copy in memory of the file. There are a bunch of scratch files (as described in the previous link) that come into play. In Microsoft Office, it is
heavily dependent on where you saved your file as to where the temporary files are located.
LOCAL SAVE and SAVE TO LOCAL NETWORK DIRECTORY
One of the temporary files that is saved periodically (assuming you have not turned this off in Preferences) is the AutoRECOVER file. In Word, you can specify a location for these AutoRECOVER files. In Excel and PowerPoint you cannot. Recently, someone posted
an excellent discussion thread regarding detective work surrounding Excel and AutoRECOVER. I recommend it to you. Perhaps it will help you recover your lost work.
Excel
autorecovery location finally found!
SAVE TO ONEDRIVE OR SHAREPOINT
Those temporary files are usually located on the same directory that was used to open the file. When saved to the cloud, those files are inaccessible to the end user. Microsoft seems confident that they can recover temporary files saved in the cloud using
AutoSAVE. I have not seen any questions that suggest that there are times when AutoSAVE failed to recover work. I just saw an article this morning that Microsoft is changing the order in which temp files are handled so that files saved to OneDrive and SharePoint
will open faster. This is an indication that Microsoft is actively working on cloud storage technologies.
SAVE TO OTHER CLOUD SERVICES
When opening and saving files on other services such as Google Drive, DropBox and Box, you are relying on that service knowing how to recover the temporary files made by Microsoft Office apps. These are beyond the control of Microsoft, but that doesn't mean
that Microsoft can't do anything to help with recovery if they chose to do so. It would be extra work for Microsoft. The other services may not share with Microsoft technical information required to make such scenarios work and could make unexpected changes
to their file systems that could impact Office files. Undertaking recovery support for these scenarios could be risky for Microsoft and Office users.
Your particular power loss scenario is one that may be more common in the future. Power outages are skyrocketing.
Trends in Power Outages
One way to protect yourself is to switch from desktop to laptop. Another more complete and environmentally friendly way, would be to install solar panels.
How
does the Tesla solar roof compare to normal solar panels?
Regarding confusion between AutoSAVE and AutoRECOVER as well as the confusing wording in Office Preferences, I completely agree with you. Just yesterday, an MVP tried to explain the difference and the correspondent just didn't catch the nuance. And this
was an experienced user.
Before I make this an official suggestion, I'd like to run this by you and get your take on it. I'm thinking there should be a RECOVER tab in Word, Excel, and PowerPoint preferences. This tab would allow the user to:
Choose a default save location for all files for the application
Choose a default AutoRecover location for locally saved files and provide a shortcut to the current AutoRecover location
It would also explain that unless the file was saved somewhere (anywhere) that nothing can be recovered.
I think the apps should have some sort of indicator showing when a recover file is available (regardless of whether the file is local or in the cloud) and it should be a caution when the file has not yet been saved or is saved to a location the Office does
not have a recovery option.
I'm thinking there should be a single name for the feature. Get rid of the distinction between AutoSAVE and AutoRECOVER and just use one of those terms.
What do you say?