Ok, I managed to make your excel sheet accessible in Cryptpad. Looks like you cannot automatically open files, you gotta import them into the corresponding application.

So if you want to upload a new excel file, instead of uploading the file, make a new sheet and in this sheet go 'File'-> 'Import'

I did this for your , check the Sheet. However it works so-so, some images didn't load. I also corrected some of your ghastly spelling mistakes. I'll try to recompress the images, 7MB for such a file is nuts.

But I strongly suggest to rewrite everything into a simple excel file without fancy images. This should also make the file much smaller and faster to open. I had to reload 10 times until it works.

Sorry bout that, as said it's not Google.

Tell me if you cn open the Sheet file and if it looks ok! It may take a long time for everything to load abd become accessible.