A datasheet.
It looks like a worksheet in a spreadsheet application such as Excel.
Access is a database. Excel is a spreadsheet. Both are useful to displaying data systematically, but a database is enormously more flexible. Access is a relational database, which is even more flexible than an ordinary database and permits the data to be manipulated in many ways. +++ It's not "instead of" but "both" - using whichever is the better for the given work. ' It does depend on your purposes. Excel is by far the better if you need only a single table, or if you need to embed a lot of mathematical formulae in the spread-sheet - though MS has ruined what had been its nearly-good graph routines. A database table looks like a spread-sheet page, but it lacks the rapid copying functions that are valuable features in Excel.
Formulas that work in Excel 2010 will work in any of the older versions of Excel. The main difference from 2007 onwards is the way Excel looks. Fundamentals like how standard formulas are used never changes. It is still a spreadsheet. If they cannot do those standard things then they are not really spreadsheets.
A spreadsheet model is the model (the type) of the spreadsheet. - how it looks like.
An Excel Worksheet looks like a grid pattern full of cells and moving from one cell to another within a window and moving from window to window in excel is quick and easy
A datasheet in Access looks a bit like a worksheet in Excel, but it is different, like having row and column headings relating to records and fields, rather than just having numbers and letters. A worksheet in Excel has a wide range of facilities that a datasheet doesn't. A datasheet is mainly for displaying data and enables some manipulation of the data. A worksheet in Excel allows you do all sorts of complex operations using formulas and other facilities in Excel. Access and Excel are different kinds of applications, so naturally they have different facilities. So the similarities are visual rather than functional.
Google the image of a capital sigma. It is a greek letter that looks similar to an E. it is black in colour
Not necessarily. Having a good understanding of Excel 2003 will help in using Excel 2007. The main difference is the look, but the fundamentals are the same as it is still a spreadsheet, so it has to be able to do things that spreadsheets do, like with the formulas and functions. As those things are much the same, then you could use Excel 2007 without having ever used Excel 2003. Users of Excel 2003 would find Excel 2007 a little strange at first because of how different it looks, although they would quickly get used to it. Someone who has never used Excel 2003 won't have that problem.
Formatting data.
For a standard spreadsheet, both versions can do what you want. 2003 looks very different and some people found 2007 difficult to adapt to, but once they got used to it, they found the fundamentals were not very different. So it is really personal choice. People who are used to 2003, might stick with it while people completely new to Excel would go for 2007.
excel +
No, they are not from the Hebrew Alphabet. Some of the shapes of the icons for Microsoft Office 2004 Mac do look a lot like Hebrew letters but they are not. The lowercase "e" from Entourage looks a lot like the Hebrew "Peh" (ּפּ), the "P" from Powerpoint does not have its legs connected so it looks like the Hebrew Letter "Qof" (ק), the "W" from Word looks like a Hebrew "Shin" (ש), and the "X" from Excel looks like an "Aleph" (א). However, this is just the case because the Hebrew letters and the more loose form of the English letters that Microsoft chose to use are similar. The icons for Access, Frontpage, OneNote, and Visio do not resemble any Hebrew characters.