Transparent Backgrounds

[#1]

I purchased a couple of holiday style graphics that were supposed to have transparent backgrounds, but once downloaded I find that they backgrounds aren't actually transparent but appear as checkered (much like transparencies appear in Photoshop).  Unfortunatley the checkered isn't transparent but actuallys shows up in the graphic making it almost impossible to use.  Any ideas?  Thank you.

[#2]

I purchased a couple of holiday style graphics that were supposed to have transparent backgrounds, but once downloaded I find that they backgrounds aren't actually transparent but appear as checkered (much like transparencies appear in Photoshop).  Unfortunatley the checkered isn't transparent but actuallys shows up in the graphic making it almost impossible to use.  Any ideas?  Thank you.

[#3]

@edb46796306 Could you share the file ID here so I can take a look?