It is a Microsoft Publisher file.
XLS is the shorthand for Microsoft Excel file extension. A file extension is the group of letters following a period in a file name, denoting what kind of file it is.
Hyper Text Markup.
The ".pub" file extension is associated with the "Publisher" application included in recent versions of Microsoft Office. Once a *.pub file has been opened in publisher, it can be re-saved as a web page or other format using the "Save As" command and selecting the desired format under the "Save as type:" drop down menu.
As far as I know, it is .PUB up through MS Publisher 2013. On future versions, it is posible that it will become .PUBX
Moving Picture Experts Group
Moving Picture Experts Group
Yes, you can have an extension on your e file taxes. Here is where you can find all of the forms and info you need to do it.www.irs.gov/pub/irs-pdf/f4868.pdf"
What is the file extension What is the file extension
A ".gdoc" is a file extension used by Google Inc. to store Google Documents.
.PUB
file extension for video is 101
.html, .php, or .htm