I wrote an article about Data Audit using Pivot long back. Now, I have converted it to a comprehensive video. Have a look:
How to perform Data Audit using Pivot
Raw data can contain many columns and thousands of rows. Checking the consistency and accuracy of data cannot be done by simply scrolling and eyeballing the data. Too time-consuming.
Continue reading Data Audit using Pivot tables
This is the continuation of the earlier article about Validations. Data Validation using Formula is not very well understood. Hence this article. Try it out and you will immediately know where you can use it. Reading time 9 min.
Continue reading Data Validation using Formula
These marks indicate some potential error. Outdated formulas, numbers stored as text and so on. If you ignore these errors, you are at a significant risk of viewing and using wrong data for your decision making. Here is a set of articles which explain exactly how to utilize these green marks to your advantage. These are your best friend.
Never interpret anything in any Excel file unless you are sure that all the green marks are handled (all potential errors are corrected!).
- Auditors, Risk Managers, Everyone: Did you know? These green marks are WARNINGS!!
- Green Marks Part 2: Formulas showing wrong results!
- Green Marks Part 3: More error handling
- Green Marks Part 4: Inconsistent Formulas
- Green Marks Part 5/5 (Background Error Checking in Excel)
Share this critical information with your boss, colleagues, subordinates and loved ones. Everyone needs to know this!
Like column names, table names can also be used in formulas. Read the previous article to understand the context.
Continue reading Excel Tables 10 – Everything is in a name
Most probably, you have been missing this Auto-copy feature for the last 8 years. Take 3 minutes to find out how it can simplify your life and increase accuracy.
Continue reading Excel Tables 6 – Miraculous Formula Auto-Copy
The Need: Trace Dependents
Excel workbooks are complex. Multiple persons share and handle the same file. We keep mailing them to each other. Often the person who created the file has left the organization long back. There is never any documentation available about exactly how a file works.
Due to all this, it is almost impossible to remember which value is used in which formula. When you are about to change a value or add more data to existing block, it is absolutely necessary to ensure that all the related formulas are updated. If you forget to update the formula, the results shown there will be outdated and WRONG. This can hamper decisions and can have severe side effects.
What we need is a way to find out which formulas to update when any data changes or grows. Excel has provided this facility since 25 years. Unfortunately, very few people are even aware of it – leave alone using it!
Continue reading Excel – Impact Analysis – Trace Dependents
In the previous article we saw the problem with importing CSV files.
Here is how the new Power Query can be used to clean the data while importing.
Estimated reading time 10 min
Continue reading CSV import problems solved with Power Query
This is a very common and dangerous inaccuracy.
Big operational risk!
Check all your dates imports after reading this article.
Share it with your colleagues as well.
Estimated reading time 15 min
Continue reading Global Alert: CSV import Date Misinterpretation Problem – Part 2
Yes. You read it correctly. Everyone does it. But still.It is very dangerous.
DO NOT do it.
Read on to find out why.
Estimated reading time 7 min
Continue reading NEVER import CSV files into Excel – Part 1
Pivot Table is used for data analysis. But did you know that it can also be used for checking data quality?
Estimated reading time 7 min.
Continue reading New use of Pivot Table – Data Quality Audit