When formulas with cell references are copied diagonally in Excel, their behavior depends on the type of cell references used in the formula:

| Type of Cell Reference | Behavior When Copied Diagonally |
|---|---|
| Relative References | References are adjusted based on the relative change in position. <br> Example: <br> - Formula in A1: '=A1+B1' (adds the values in A1 and B1) <br> - Copied to B2: becomes '=B2+C2' (adjusts to add values in B2 and C2) |
| Absolute References | Absolute references remain unchanged regardless of where the formula is copied. <br> Example: <br> - Formula in A1: '=$A$1+$B$1' (always adds the values in cells A1 and B1) <br> - Copied to B2: remains '=A$1+$B$1' (still refers to A1 and B1) |
| Mixed References | Mixed references (one absolute, one relative) have the absolute part remain unchanged and the relative part adjust based on the copy direction. <br> Example: <br> - Formula in A1: '=A$1+B1' (adds the value in A1 to the value in B1) <br> - Copied to B2: becomes '=A$1+C2' (A1 stays absolute, B1 adjusts to C2) |
| Range References | The entire range reference adjusts based on the diagonal movement. <br> Example: <br> - Formula in A1: '=SUM(A1:B1)' (sums the values in A1 and B1) <br> - Copied to B2: becomes '=SUM(B2:C2)' (sums the values in B2 and C2) |
# This code snippet does not require running or generating any output,
# as it provides a textual explanation
print("When formulas with cell references are copied diagonally in Excel, their behavior depends on the type of cell references used in the formula:")

print("\n1. Relative References:")
print(" - References are adjusted based on the relative change in position.")
print(" - Example:")
print(" - Formula in A1: '=A1+B1' (adds the values in A1 and B1)")
print(" - Copied to B2: becomes '=B2+C2' (adjusts to add values in B2 and C2)")

print("\n2. Absolute References:")
print(" - Absolute references remain unchanged regardless of where the formula is copied.")
print(" - Example:")
print(" - Formula in A1: '=$A$1+$B$1' (always adds the values in cells A1 and B1)")
print(" - Copied to B2: remains '=A$1+$B$1' (still refers to A1 and B1)")

print("\n3. Mixed References:")
print(" - Mixed references (one absolute, one relative) have the absolute part remain unchanged and the relative part adjust based on the copy direction.")
print(" - Example:")
print(" - Formula in A1: '=A$1+B1' (adds the value in A1 to the value in B1)")
print(" - Copied to B2: becomes '=A$1+C2' (A1 stays absolute, B1 adjusts to C2)")

print("\n4. Range References:")
print(" - The entire range reference adjusts based on the diagonal movement.")
print(" - Example:")
print(" - Formula in A1: '=SUM(A1:B1)' (sums the values in A1 and B1)")
print(" - Copied to B2: becomes '=SUM(B2:C2)' (sums the values in B2 and C2)")

# Note: Although the code snippet doesn't explicitly mention it, Excel by default cannot copy diagonally.
# Diagonal copy effects can be achieved using functions like INDEX or OFFSET.
Note: Although the code snippet doesn't explicitly mention it, Excel by default cannot copy diagonally. Diagonal copy effects can be achieved using functions like INDEX or OFFSET.