Dear pal
WYSIWYG is the concept of Excel or for that matter any spread sheet solutions (If you are oldie then you may be able to recollect the lotus 1-2-3 solutions.
the excel facilitates you (with common wits ) handling whole of the account and formula.
Having interportablility is another advantage.
Following are the enumerated advantages of using excel or access
1. you can:Run powerful queries to sort and filter your data.
2. Run sophisticated calculations to derive the information you want.
3. Use Microsoft PivotTable and Microsoft PivotChart views to work with your data interactively.
4. Generate reports on your data and view them in multiple formats.
5. Use forms to add, change, delete, and navigate your data easily.
6. Create a Microsoft Word mail merge — for example, to mass-produce address labels.
7. Connect to external data and view, query, and edit it without having to import.
8. Create Web pages to display your data as read-only or to access it in an updatable format.
9. Import data from external databases (Access, Microsoft SQL Server) and other file types (.txt or .htm).
10 Organises data in columns, also called fields, that store a particular kind of information, or data type. At the top of each column, the first cell is used to label the column.
and above all cool and stress free to use.
All the best