[Can't open .afphoto files in Affinity Photo]

So the strange thing is that some of the icons with bent corners and no extension name can be opened, and others are still grayed out and can't! The ones that can't be opened aren't visible in the file manager!

[Can't open .afphoto files in Affinity Photo]

Thank you both for your help! I am new to this stuff. Great observations! So the odd thing is that I noticed that some files that do no have any extension and that have a turned corner are not grayed out and open in affinity photo just fine! I did a test where I just scribbled some black and red lines and then clicked "save as" and just saved it to my downloads and it appears with no extension, a turned corner, but not grayed out. So weird! I'm not sure what to make of this.

[Can't open .afphoto files in Affinity Photo]

When I try to open some of my .afphoto files in Affinity Photo that I previously created, they are grayed out and I cannot open them. I can open jpg files and some afphoto files I created in the past, but it seems the ones I have created more recently can't be opened. The files that are grayed out in affinity photo don't seem to appear in my "finder" at all, though the openable ones do. I can't seem to upload one of the grayed out files here either. I am using a Macbook OS X El Captain. Can anyone help? Thanks in advance!