Knox County. UT Extension serves the citizens of Knox County with educational programs in the areas of Agriculture, Family and Consumer Sciences, Community Resource Development, and 4-H Youth Development.
Microsoft Excel on the other hand is a spreadsheet program, it is usually used to display data and work out calculations in the form of tables and graphs, it also has a more integrated use of macros. So basically, Access stores data, Excel calculates and displays data.   ANS2:Access creates relational databases.
XLSX Excel Spreadsheets are different than the XLS version in that they use the Microsoft Office Open XML format. The Open XML format makes it easy for other programs, such as OpenOffice.org, to read XLSX files (and other Open XML file types). The Open XML format was introduced with Microsoft Office 2007.