My Sharepoint Learnings

In Sharepoint 2010, in the list ribbon there is an option Export to Excel, to get the list data in excel format. The same option can be given to the end user on click of a button in the page Create a content editor webpart. In the html source enter the following code <button type="button"  <a href="#" onclick="javascript:window.location='../_vti_bin/owssvr.dll?CS=109&Using=_layouts/query.iqy&List= ListGuid &View= ViewGuid &CacheControl=1'"><img src="/_layouts/images/icxlsx.gif" border="0"/>&nbsp;&nbsp; Export to Excel</a> </button>

Calculated columns is one of the types available in SharePoint. Some important rules and guidelines are as follows: The functions TODAY and ME are not supported in calculated columns but are supported in the default value setting of a column. Arithmetic operators supported include + (addition), - (subtraction), * (multiplication),/ (division), % (percent), and ^ (exponentiation). In Equations parenthesis are allowed. The allowed Comparison operators are  = (equal to), > (greater than), < (less than),>= (greater than or equal to), <= (less than or equal to), and <> (not equal to). & (ampersand) is used to connect 2 values and produce one continuous text value. A value other than the current row cannot be referenced A value in another list or library cannot be referenced. The RAND and NOW functions is not supported in Lists and libraries. Most of the Excel functions are supported in SharePoint calculated columns, but not all.