is Magento security patch that combines SUPEE-10266
for Magento 126.96.36.199 version only.
SUPEE-10497 can be downladed from https://magento.com/tech-resources/download#download2138
If you got SUPEE-10266
applied already, it should be reverted before installing SUPEE-10497 via SSH.
To install via FTP/Fileupload you can simply upload SUPEE-10497 without any other actions. As bundle of SUPEE-10497 contains all files from both SUPEE-10266
, so it will just overwrite it with newer files.