You can merge cells, bringing two or more cells together to form one big cell. It can be useful for putting a heading across more than one column or row.
Microsoft is a brand like Addidas or Prada. Excel is a programme that you use for producing spreadsheets.
Microsoft Excel is part of Microsoft Office. If that's what you mean.
If you mean doing calculations, then it is a formula.
It is the second letter in the name of the software application Microsoft Excel. It does not stand for anything specific.
The slash can be used for division like this:=A2/B2
It could be the cell at column Z and row 425.
It brings the contents of two or more cells into one cell, or allows you to spread a single cell across several rows or columns. You select the cells you want to merge, which must be together, and then apply the merge through the menus or icon.
If you mean a Microsoft operating system, such as XP or Vista or Windows 7, then on an IBM PC, it does need to be running before Excel can run. You can also get Excel for other types of computers that do not use a Windows operating system, such as an Apple computer, and Excel can run on those. So it depends on the type of computer and the version of Excel.
Excel training refers to the instruction of use of the Microsoft Excel word and data processing program. Including all of its basic and andvanced functions, processes, applications, and requirements.
To excel is to do very well in something, well above average. It comes from excellent. Experts in things excel in their areas of work. The top athletes excel in their sport. Excel is also the name of the most popular spreadsheet program. It is made by Microsoft.
if you mean operating system, Windows 7 (in beta)
Number can be just the mathematical term for a number. In Excel it is also a category for various formats for displaying numbers like currency, percentage etc.