I was utilizing the free trial and had no issues saving HTML files. Now that I purchased a key and activated it, I can no longer save HTML files. I have the option available, and I select it when saving, however it appears in my folder as a File. Does anyone know if I am perhaps doing something wrong or different???
Cannot Save As HTML after license purchase
entering a license key wouldn’t have an effect on this, maybe you are accidentally doing something differently - maybe it would help if you outline the exact steps you are using to create/save your HTML files, and we can try to help you from there 
what OS platform are you on?
This may potentially be because you’re entering the file name as my_file and not as my_file.html. Or if you will, Sublime does not automatically append html to the end of the file name even if you select that option from the file filter in the Save dialog box.
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The above applies if you try to save a file while the syntax is set to Plain Text, which is the default for newly created tabs. If you set the syntax to HTML first, saving a file with no extension will select an appropriate extension and append it to the end of the file in some situations.
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