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).
Main Difference. XLS and XLSX are the file extension of the Microsoft spread sheet called Excel. On Excel you can arrange and store lot of data in organized form. The main difference between these two file extensions is that the XLS is created on the version of Excel prior to 2007 while XLSX is created on the version of Excel 2007 and onward.