Introduction -. On March 13, 2013, the Centers for Medicare & Medicaid Services (CMS) concurrently issued CMS Ruling Number CMS-1455-R (the Administratorâs Ruling) and a proposed rule, âPart B Inpatient Billing in Hospitalsâ (the Proposed Rule).
Topics covered in this Lesson: XRefs (External Reference Files in AutoCAD) An XRef is an âexternal reference' to another AutoCAD drawing file. One file can reference many other files and display them as if they were one. These are used in larger projects for many reasons: They keep the file sizes down.
How to Open XFD Files. Since XFD files store data in plain text ASCII format, you can open them using any text editing program, such as Notepad or WordPad for Windows, Apple TextEdit for Mac, or gEdit for the Linux operating system.