There are two main ways to loop through cell references using VBA in Excel:

1. Using a For Loop with Range Object:

This method utilizes a `For` loop to iterate through each cell within a defined range. Here's an example:

```vba
Sub LoopThroughRange()

Dim cell As Range ' Declare a variable to represent each cell
Dim rng As Range ' Define the range to loop through

Set rng = Range("A1:B10") ' Set the range (adjust as needed)

' Loop through each cell in the range
For Each cell In rng
' Perform an action on the current cell (replace with your desired action)
Debug.Print cell.Address & ": " & cell.Value
Next cell

End Sub
```

Explanation:

- We declare two variables: `cell` as a `Range` object to represent each cell during the loop, and `rng` as a `Range` object to define the range we want to iterate through.
- We set `rng` to the desired cell range (e.g., A1:B10). You can adjust this range to fit your needs.
- The `For Each` loop iterates through each cell within the `rng` object.
- Inside the loop, the `cell` variable represents the current cell being processed. You can access its address using `.Address` and its value using `.Value`.
- In this example, we simply print the cell address and value to the Immediate Window (Debug.Print). Replace this with your desired action on each cell.

2. Using a For Loop with Counter:

This method uses a `For` loop with a counter variable to loop through each row and column within a specific range. Here's an example:

```vba
Sub LoopByRowAndColumn()

Dim row As Long, col As Long ' Declare loop counters

' Define the starting and ending row/column (adjust as needed)
For row = 1 To 10
For col = 1 To 5
' Build the cell reference using string concatenation &
Dim cellRef As String
cellRef = Range("A1").Offset(row - 1, col - 1).Address

' Perform an action on the constructed cell reference (replace with your desired action)
Debug.Print cellRef & ": Content will be processed here"
Next col
Next row

End Sub
```

Explanation:

- We declare two loop counter variables: `row` and `col`.
- We define the starting and ending row/column for the loop (adjust as needed).
- The outer loop iterates through each row using the `row` counter.
- The inner loop iterates through each column within the current row using the `col` counter.
- We use the `Offset` method of `Range("A1")` to construct the cell reference dynamically based on the current row and column values.
- We store the constructed cell reference in a string variable `cellRef`.
- In this example, we simply print the cell reference and a message indicating processing (replace this with your desired action on the cell reference).

Remember to adjust the range definitions and actions within the loops to fit your specific needs. These are just two common approaches to loop through cell references using VBA in Excel.