.xls or .xlsx
doc, DOC
For most typical Word documents the extension is .docFor Excel workbooks (spreadsheets) the extension is .xlsIn general the file extension is the 3 letter/number "code" after the period in the complete file name that gives a hint as to what type of file it is. For example, in the file name resume.docthe word resume is the file's actual name and the .doc tells you that it is a document file.
* The file extension of a Word document is .doc * The file extension of an Excel speadsheet is .xls
The extension. It tells Windows what kind of a file it is. For example, a file with the ".doc" extension is a Microsoft Word Document.
Yes
.htm
The file extension for native InDesign files is .indd (InDesign document). You also get InDesign book files which have an .indb (InDesign book) extension.
.docx
.doc or .docx
It depends on the type of document, if it's a Microsoft word document it will have a file extension of .doc if it's a adobe acrobat document it'll have an extension of .pdf, at any rate you can Google the extension and it will tell you what kind of program created it, hope it helps. Karp.
"Here your question is not clear. But if you are talking about converting the HTML document's extension name from .HTML to .com, then it is not possible. '.HTML' is an extension name that gives an identity to the document that this an HTML document, and only then it will be recognized by the browsers and the parsers. '.com' is the extension for a domain (used for commercial purposes), Similarly there can be many different domain name extensions like dot gov stands for government, dot edu is for education etc. If you have developed a website, then you have to buy a server space where you can upload all you files. Also if you want your website to be recognized by the visitors by a special '.com' name, then you have to by a domain name for your website."
.doc