Convert xhtm to ptiff

What is the difference between .xhtm and .ptiff?

Description: The Extensible Hypertext Markup Language (XHTML) file type is an XML-based markup language for creating web pages. It is a hybrid of HTML and XML and is designed to replace HTML as the main language for creating web content. XHTML files provide a more flexible, extensible structure for web documents, allowing for more complex page designs and better integration with other web technologies.; Ptiff is a type of image file that is created by compressing a TIFF (Tagged Image File Format) image using a wavelet-based encoding, known as pyramidal encoding. This type of file can store both lossy and lossless compressed images and is often used for storing large-scale images such as aerial photographs or medical images.