When programming using VBA, there are few important objects that a user would be dealing with.

• Application Objects
• Workbook Objects
• Worksheet Objects
• Range Objects

Application Objects

The Application object consists of the following −

• Application-wide settings and options.
• Methods that return top-level objects, such as ActiveCell, ActiveSheet, and so on.

Example

''Example 1 :
Set xlapp = CreateObject("Excel.Sheet") 
xlapp.Application.Workbooks.Open "C:test.xls"

''Example 2 :
Application.Windows("test.xls").Activate

''Example 3:
Application.ActiveCell.Font.Bold = True

Workbook Objects

The Workbook object is a member of the Workbooks collection and contains all the Workbook objects currently open in Microsoft Excel.

Example

''Ex 1 : To close Workbooks
Workbooks.Close

''Ex 2 : To Add an Empty Work Book
Workbooks.Add

''Ex 3: To Open a Workbook
Workbooks.Open FileName:="Test.xls", ReadOnly:=True

''Ex : 4 - To Activate WorkBooks
Workbooks("Test.xls").Worksheets("Sheet1").Activate

Worksheet Objects

The Worksheet object is a member of the Worksheets collection and contains all the Worksheet objects in a workbook.

Example

''Ex 1 : To make it Invisible
Worksheets(1).Visible = False

''Ex 2 : To protect an WorkSheet
Worksheets("Sheet1").Protect password:=strPassword, scenarios:=True

Range Objects

Range Objects represent a cell, a row, a column, or a selection of cells containing one or more continuous blocks of cells.

''Ex 1 : To Put a value in the cell A5
Worksheets("Sheet1").Range("A5").Value = "5235"

''Ex 2 : To put a value in range of Cells
Worksheets("Sheet1").Range("A1:A4").Value = 5