If you choose to save as a html file than it will else it will save as the file type you told it to.
Yes they wil. But sometimes not.
HTML files are in their essence simply text files that are written in this code language called "HTML". To make programs recognize the text files as web documents, they are called .htm files. So in short, to create an HTML file, simply create a text file using Notepad, save it and change the file name to "xyz.htm" or "xyz.html" instead of "xyz.txt".
All HTML files are text files. You can open them with any text editor, such as Notepad. When a browser opens the file, it reads it and displays the html as a web page. If you open a html file in a text editor or a word processor or other such application, you will see the actual html code, which is just ordinary text. So you don't need to convert HTML files into text, as they are already text files. All you need is something to open them with, other than a browser.
An HTML file is for web browsers only. It is not a media file at all. But you can have HTML files load media and have them play it in your browser.
There is no direct support for Publisher (.pub) files on a Mac. Depending on your needs (and budget) Pub2ID (See links below) converts Publisher files so they can be imported to In Design. Publisher can export to a PDF file which can be read but not edited on a Mac.
You cannon get the HTML since .swf is a file type created using Macromedia.
PHP files are HTML files with any amount of PHP intermingled into it, so the file can be empty or only contain HTML and be valid, yes.
The initialism MHTML stands for "MIME HTML", which in turn stand for "Multipurpose Internet Mail Extensions" and "HyperText Markup Language" respectively. The MHTML file type combines a regular HTML file with the assets needed to render that file - images, Java applets, sound files, etc.
HTTP is not a file, it is a protocol. It therefore does not have an extension. If you mean HTML files, which are web pages, then either htm or html can be used as extensions.
HTML stands for Hyper Text Markup Language. PDF stands for Portable Document File.
You can add images and graphics to HTML file by adding them in your project. Giving their path makes them into your HTML.
If you have a .txt file that you want to be a html file, do this: open the .txt file and then save as and (change the name to what you want to call the file).html. Make sure that you 'save as' for all files or you will be saved as: somename.html.txt which will result it still be a text document. Make sure that you have the document in HTML format.