Data quality and cleaning
A dashboard is only as trustworthy as the data under it. These posts cover both halves of that problem: the practical techniques for cleaning a specific mess, such as duplicates in Excel or a CRM full of near-identical contacts, and the tools that turn a one-off clean-up into something that runs on every refresh.
9 posts
- Data Quality5 min
Your Data Arrives Wrong. Here Is the Detection Layer.
Jasper Flour · 14 August 2026Bad data does not announce itself. It arrives looking exactly like good data, and you find out three weeks later in a meeting. There are two moments worth catching it: once when you are looking at the data, and continuously when you are not.
- Data Quality10 min
What Is Self-Service Data Preparation? A Complete Guide
Jasper Flour · 16 March 2026Self-service data preparation lets business users clean, join, and transform data without writing code or relying on IT. This guide covers how it works.
- Data Quality13 min
Data Quality Management: Our Ultimate Guide (For 2026)
Jasper Flour · 2 March 2026Learn all about what data quality management (DQM) is and how to implement it in your organization (even if you're not a data expert).
- Data Quality17 min
How to Remove Duplicates in Excel (5 Best Methods)
Jasper Flour · 12 February 2026Want to remove duplicates in Excel? This guide shows you our 5 favorite methods, from the simplest one-click solution to advanced automation for large datasets.
- Data Quality12 min
15 Best Data Quality Tools for 2026 [Curated List]
Jasper Flour · 8 January 202615 data quality tools compared on who can run them, what they cost and whether they fix data or only report on it, plus four cleaning tools for business users.
- Data Quality6 min
CRM Data Cleansing: How to Fix Your Messy Contact Database
Jasper Flour · 28 August 2025CRM data cleansing is the process of fixing duplicate, outdated, and incorrectly formatted records in your customer database. With 70% of CRM data going bad annually and poor data quality costing businesses $13.5 million per year on average, cleanup isn't optional. It's survival. Ever spent your weekend fixing spreadsheets because your CRM data was so messy
- Data Quality6 min
Inaccurate Data: How to Spot and Fix It Fast (2026 Guide)
Jasper Flour · 14 August 2025You're presenting quarterly numbers to the board. Halfway through, you realize some of the data is wrong. Or your marketing team discovers they've been targeting customers who haven't been active for months. These situations happen more often than anyone wants to admit. According to Gartner, inaccurate data costs organizations $12.9 million annually. That's just the
- Data Quality6 min
Data Cleansing vs Cleaning: What’s the Difference?
Jasper Flour · 8 May 2025In the world of data management, two terms often come up: data cleansing and data cleaning. While they may sound similar, these processes play distinct roles in ensuring data quality. Understanding the differences between data cleansing vs data cleaning is key for organizations looking to make the most of their information assets. At Mammoth Analytics,
- Data Quality13 min
Data Cleaning in Excel: 8 Best Techniques and Tips [2026]
Aakanchha Keshri · 22 December 2023Need help with data cleaning in excel? Read our step-by-step guide loaded with the best tips and tricks. Go from messy spreadsheet, to clean dataset in minutes!
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