You have been on Tamiflu for 5 days are you still contagious? My husband has a confirmed case of H1N1 and was given Tamiflu to help. It has made a marked difference in how he is feeling (he has been on the meds a little more than 24 hour â¦ s).
Worksheet file (Microsoft Excel) XLS is a file extension for a spreadsheet file format created by Microsoft for use with Microsoft Excel. XLS stands for eXceL Spreadsheet. Microsoft Excel files use a proprietary format for storing Microsoft Excel documents. This file format is known as the Binary Interchange File Format (BIFF).
File Extension. A file extension (or simply extension) is the suffix at the end of a filename that indicates what type of file it is. For example, in the filename myreport.txt, the .TXT is the file extension.It indicates the file is a text document.he file extension determines which program is used to open the file as well as what icon should be displayed for the file. It also helps you see what kind of file a certain document is by just looking at the filename.