Consolidating data from multiple sheets in Excel - Cell-by-Cell Formula Trace

Sample Data

Two sheets (Sheet1 and Sheet2) have sales data for products. The Summary sheet lists products to consolidate total sales from both sheets.

Cell	Value
Sheet1!A1	Product
Sheet1!B1	Sales
Sheet1!A2	Apples
Sheet1!B2	100
Sheet1!A3	Bananas
Sheet1!B3	150
Sheet2!A1	Product
Sheet2!B1	Sales
Sheet2!A2	Apples
Sheet2!B2	200
Sheet2!A3	Oranges
Sheet2!B3	120
Summary!A1	Product
Summary!B1	Total Sales
Summary!A2	Apples
Summary!A3	Bananas
Summary!A4	Oranges

Formula Trace

=SUMIF(Sheet1!A:A, A2, Sheet1!B:B) + SUMIF(Sheet2!A:A, A2, Sheet2!B:B)

Step 1: SUMIF(Sheet1!A:A, A2, Sheet1!B:B)

Step 2: SUMIF(Sheet2!A:A, A2, Sheet2!B:B)

Step 3: 100 + 200

Cell Reference Map

Summary Sheet:
+----+---------+
| A  | B       |
+----+---------+
| 1  | Product | Total Sales
| 2  | Apples  | <- formula here
| 3  | Bananas |
| 4  | Oranges |

References:
- Sheet1!A:A and Sheet1!B:B for product and sales
- Sheet2!A:A and Sheet2!B:B for product and sales
- Summary!A2 for product name to match

The formula in Summary!B2 uses product name in Summary!A2 to find matching sales in Sheet1 and Sheet2 columns A and B.

Result

Summary Sheet after formula in B2:
+---------+-------------+
| Product | Total Sales |
+---------+-------------+
| Apples  | 300         |
| Bananas | 150         |
| Oranges | 120         |

The total sales for each product are summed from both sheets and shown in Summary sheet column B.

Sheet Trace Quiz - 3 Questions

What does SUMIF(Sheet1!A:A, A2, Sheet1!B:B) do in this formula?

A Sums sales in Sheet1 for the product named in Summary!A2

B Counts how many times the product appears in Sheet1

C Adds all sales in Sheet1 column B

D Finds the maximum sales value in Sheet1

Key Result

SUMIF(range_to_check, criteria, range_to_sum) + SUMIF(another_range_to_check, criteria, another_range_to_sum) sums matching values from multiple sheets.

Practice

1. What is the main purpose of consolidating data from multiple sheets in Excel?

easy

A. To combine data from different sheets into one summary

B. To delete duplicate sheets automatically

C. To create charts from a single sheet only

D. To protect sheets with passwords

Solution

1. Step 1: Understand consolidation concept

   Consolidation means combining data from multiple sheets to get a summary.

2. Step 2: Identify the purpose

   It helps to see combined totals or summaries in one place.

3. Final Answer:

   To combine data from different sheets into one summary -> Option A

4. Quick Check:

   Consolidate = Combine data [OK]

Hint: Think 'combine' when you hear consolidate [OK]

Common Mistakes:

• Confusing consolidation with deleting sheets
• Thinking it only creates charts
• Assuming it protects sheets

2. Which formula correctly sums cell A1 from sheets named Sheet1, Sheet2, and Sheet3?

easy

A. =SUM(Sheet1!A1, Sheet2!A1, Sheet3!A1)

B. =SUM(A1:Sheet3!A1)

C. =SUM(Sheet1:A1, Sheet2:A1, Sheet3:A1)

D. =SUM(Sheet1!A1:A3)

Solution

1. Step 1: Understand sheet references in formulas

   To sum cells from different sheets, use sheetname!cell syntax separated by commas.

2. Step 2: Check each option

   =SUM(Sheet1!A1, Sheet2!A1, Sheet3!A1) correctly sums A1 from each sheet individually.

3. Final Answer:

   =SUM(Sheet1!A1, Sheet2!A1, Sheet3!A1) -> Option A

4. Quick Check:

   SUM(sheet!cell, ...) = correct [OK]

Hint: Use sheetname!cell for cross-sheet references [OK]

Common Mistakes:

• Using range syntax across sheets incorrectly
• Missing exclamation mark after sheet name
• Trying to sum ranges that don't exist

3. Given Sheet1!A1=10, Sheet2!A1=20, Sheet3!A1=30, what is the result of =SUM(Sheet1!A1:Sheet3!A1)?

medium

A. 60

B. 10

C. Syntax Error

D. #REF! error

Solution

1. Step 1: Understand range syntax across sheets

   Excel does not allow ranges like Sheet1!A1:Sheet3!A1 across multiple sheets in SUM.

2. Step 2: Identify the error

   This causes a #REF! error because the range is invalid.

3. Final Answer:

   #REF! error -> Option D

4. Quick Check:

   Invalid cross-sheet range = #REF! error [OK]

Hint: Cross-sheet ranges like Sheet1!A1:Sheet3!A1 cause errors [OK]

Common Mistakes:

• Assuming cross-sheet ranges work like normal ranges
• Expecting sum of all values without correct syntax
• Ignoring error messages

4. You want to sum cell B2 from sheets Jan, Feb, and Mar using =SUM(Jan!B2, Feb!B2, Mar!B2), but it returns 0. What is the likely problem?

medium

A. Formula syntax is incorrect

B. Sheet names are misspelled or missing

C. Cells B2 are empty in all sheets

D. SUM function cannot add multiple sheets

Solution

1. Step 1: Check sheet names in formula

   If sheet names are misspelled or do not exist, Excel treats references as zero.

2. Step 2: Verify cell contents

   If cells have values but formula returns 0, likely sheet names are wrong.

3. Final Answer:

   Sheet names are misspelled or missing -> Option B

4. Quick Check:

   Wrong sheet names = zero result [OK]

Hint: Double-check sheet names spelling in formulas [OK]

Common Mistakes:

• Assuming syntax error instead of name error
• Not verifying cell contents
• Thinking SUM can't add multiple sheets

5. You have monthly sales data in sheets named Jan, Feb, Mar in cell C5. You want a summary sheet cell A1 to show total sales for these months. Which formula correctly consolidates this data?

hard

A. =SUM(Jan:C5, Feb:C5, Mar:C5)

B. =SUM('Jan:Mar'!C5)

C. =SUM(Jan:Mar!C5)

D. =SUM(Jan!C5:Mar!C5)

Solution

1. Step 1: Understand 3D reference syntax

   Using Jan:Mar!C5 sums cell C5 across all sheets from Jan through Mar.

2. Step 2: Check each option

   =SUM(Jan:Mar!C5) uses correct 3D reference syntax without quotes.

3. Final Answer:

   =SUM(Jan:Mar!C5) -> Option C

4. Quick Check:

   3D reference = SUM(Jan:Mar!C5) [OK]

Hint: Use 3D references like Jan:Mar!Cell to sum across sheets [OK]

Common Mistakes:

• Adding quotes around sheet range
• Using invalid range syntax across sheets
• Trying to sum ranges instead of single cells