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.
11 posts
- 10 min
Data Quality Software: 8 Tools You Should Know (in 2026)
Bad data costs more than people think. IBM puts the figure at $3.1 trillion annually in the US alone. But for most teams, the problem isn't knowing data quality matters. It's that fixing it takes too long, requires too much technical skill, or falls to someone who already has a full-time job doing something else.
13 April 2026 - 11 min
What Is Self-Service Data Preparation? A Complete Guide
Self-service data preparation lets business users clean, join, and transform data without writing code or relying on IT. This guide covers how it works.
16 March 2026 - 6 min
8 Best Data Cleaning Software Tools (2026 Comparison)
We compared 8 data cleaning software tools on capability, ease of use, and pricing. Find the right option whether you're a business analyst or data engineer.
16 March 2026 - 13 min
Data Quality Management: Our Ultimate Guide (For 2026)
Learn all about what data quality management (DQM) is and how to implement it in your organization (even if you're not a data expert).
2 March 2026 - 18 min
How to Remove Duplicates in Excel (5 Best Methods)
Want 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.
12 February 2026 - 10 min
15 Best Data Quality Tools for 2026 [Curated List]
Looking for a data quality tool? We've done the research so you don't have to. Check out our article to see our list of the top 16 data quality tools around!
8 January 2026 - 6 min
CRM Data Cleansing: How to Fix Your Messy Contact Database
CRM data cleansing is the process of fixing duplicate, outdated, and incorrectly formatted records in your customer database.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
28 August 2025 - 6 min
Inaccurate Data: How to Spot and Fix It Fast (2026 Guide)
You'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
14 August 2025 - 6 min
Data Cleansing vs Cleaning: What’s the Difference?
In 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,
8 May 2025 - 13 min
Data Cleaning in Excel: 8 Best Techniques and Tips [2026]
Need 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!
22 December 2023 - 3 min
How To Clean A Dataset in Minutes Quick 2-Step Guide)
Have a data set that you need help with cleansing, normalizing, standardizing, or consolidating? This article shows you how to do exactly that
5 July 2023
Fix it once, not every month.
Cleaning steps are recorded as a pipeline, so the same fix runs on every refresh instead of by hand.
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