Convert mhtml to xlam

What is the difference between .mhtml and .xlam?

Description: MHTML, short for MIME HTML, is a file format that archives web pages. The format combines HTML code, images, JavaScript, and other resources into a single file using MIME type multipart/related. This method of encapsulating a complete webpage (or set of webpages) in a single file makes MHTML files convenient for saving, sharing, and viewing web content offline. MHTML files typically have the extension .mhtml or .mht and can be opened by various web browsers.; xlam (Excel Open XML Macro-Enabled Add-In) is a file type used in Microsoft Excel which contains code written in Visual Basic for Applications (VBA). It is used to store and deploy macros, custom user forms, and other Excel add-in components. xlam files can be opened and edited in Excel, but they are not as secure as other Excel file types.

MIME Type: application/x-mimearchive; application/vnd.ms-excel.addin.macroEnabled.12