Import Unknown problem with .raw files?

[fsphoto]

Lightroom Version Number

9.4

Operating System

1. Windows 10

I have been reorganizing my photo library. Moving files, renaming and removing duplicates, etc.
In the folder that I keep photos from my cell phones I have a great number of files with the extension .RAW on my hard drive that Lightroom says it is unable to import. I get a message that the files are corrupted or damaged. This issue is only with files from my cell phones. In the course of my reorganizing, I do not seem to be missing any files, so I am puzzled as to what has happened and why I now have hundreds of .RAW files that I never had before.
Can anyone help me understand what is going on?

When I try to open them in Photoshop, this is what I get,

Click on the OK button and this opens,

 

[Victoria Bampton]

Have you ever had to run file recovery software or anything like that, perhaps?

 

[Johan Elzenga]

The dimensions are only 200 x 128 pixels. That means you are opening the thumbnail somehow.

 

[hanoman]

Where is the third channel?

 

[Johan Elzenga]

Where is the third channel?

Raw files only have one channel, so this too confirms that this is probably some (corrupted) thumbnail.

 

[fsphoto]

Have you ever had to run file recovery software or anything like that, perhaps?

No I have not thankfully.