Can these be saved?

[helpthismama]

Don't understand why it's happened to some and not all. Seems to be the ones in corner of shed that have got mouldy

What are we looking at? A mouldy shelf?

Not entirely sure what you're asking, but if it's the mould shelves just clean
Then and out then outside in the sun for a bit if you can

Try wiping with anti bac or disinfectant.

Maybe try washing them?

Yes mould on cardboard type shelves. I thought they would have to go in the bin so I'm delighted I can try and clean and let them dry outside