Urea breath test. A person drinks a liquid containing a low level of radioactive material that is harmless or a nonradioactive material. If H. pylori is present in the person's gastrointestinal tract, the material will be broken down into labeled carbon dioxide gas that is expelled in the breath.
An active worksheet is the worksheet that is currently open. For example, in the picture above, the sheet tabs at the bottom of the window show Sheet1, Sheet2, and Sheet3, with Sheet1 being the active worksheet.The active tab usually has a white background behind the tab name.preadsheet. Alternatively referred to as a worksheet, a spreadsheet is a file made of rows and columns that help sort data, arrange data easily, and calculate numerical data. What makes a spreadsheet software program unique is its ability to calculate values using mathematical formulas and the data in cells.
Excel Spreadsheet (.xls) File. XLS file extension stands for eXceL Spreadsheet and is the file format that holds the data in the Microsoft Excel worksheet. The Excel stores the data in rows and columns format and is enriched with the features such as; calculations, pivot tables, etc.