An ITIN (Individual Taxpayer Identification Number, sometimes called a PIN, Tax ID or Taxpayer ID) will serve as your identification number for filing your tax returns. If you do not qualify for an SSN, you will need to apply for an ITIN.
Active Server Page Extended ASP.NET script. An aspx file extension is associated with Active Server Page Extended format used by Internet Information Services (IIS) web server with server side scripting language ASP.NET used to dynamically generate websites. Generated output from an .aspx page in your browser is common html page.
An .ASPX file is a collection of processing routines written in Visual Basic Script. They are typically run from a web server or similar calling program by passing parameters into one or more of the routines. If you try double-clicking the file, you are attempting to run it.G. PG. To save the aspx file on your computer and view it as a PDF, you right click on the disk icon that appears when you move your mouse pointer to the bottom right-hand corner of the screen.