AI That Creates Reports from Excel Files
Generate reports from Excel files with AI: summaries, charts and commentary built from your data, refreshed on new files each period. How Plumb creates reports.
Plumb Blog
Clean data, clear answers
Practical guides to cleaning messy Excel and CSV data and analyzing it with AI, from the team building Plumb.
AI Data Analysis
What AI can do with your Excel and CSV files today: insights, patterns, charts, explanations and reports.
AI That Cleans and Analyzes Data Together
Why cleaning and analysis belong in one AI workflow, how errors in uncleaned data skew answers, and how Plumb cleans and analyzes your data in one place.
Can AI Automatically Detect Trends in Sales Data?
Yes. How AI detects sales trends, seasonality and turning points, separates them from noise, and how Plumb monitors your sales data for changes automatically.
AI That Finds Relationships Between Columns
Find relationships between columns automatically: correlations, category effects and dependencies, with caveats on causation, using Plumb's AI correlation analysis.
AI That Explains Your Business Data in Plain English
Use AI to explain business data: why a metric changed, which drivers matter, and what the numbers mean, with explanations you can trace back to the data in Plumb.
How to Analyze Data Without Knowing Python
Ways to analyze data without Python: Excel and Power Query, pivot tables, no-code BI tools and AI data analysts like Plumb, with what each is best for.
AI That Generates Charts from CSV Files
Turn a CSV into the right chart automatically: how AI picks chart types, what makes a chart honest, and how Plumb generates and exports charts from your data.
An AI Data Analyst Without Coding
Get data analyst work done without Python or SQL: cleaning, analysis, charts and reports with a no-code AI data analyst, and what to still check yourself.
Best AI Tools for Data Analysis: How to Choose
How to choose the best AI tool for data analysis: the main categories of tools, the criteria that matter, and where Plumb fits for non-technical teams.
Can ChatGPT Analyze Large Datasets?
What general AI chat assistants can and cannot do with large datasets: file limits, sampling, context windows and reproducibility, and when a dedicated tool like Plumb fits better.
AI That Automatically Finds Patterns in Data
How AI finds patterns in data, from trends and seasonality to segments and correlations, which patterns are real versus noise, and how Plumb surfaces them.
Upload Excel and Get Insights Using AI
Upload an Excel file and get AI-generated insights: key metrics, trends, outliers and suggested questions, all traceable to your data. How it works in Plumb.
Is There an AI Tool That Understands My Data?
What it means for AI to understand your data: column meaning, data types, relationships and business context, and how Plumb builds that understanding from your files.
Which AI Can Analyze CSV Files?
A comparison of AI options for analyzing CSV files: general chat assistants, spreadsheet copilots, notebook tools and dedicated AI data platforms like Plumb.
Can AI Analyze My Excel Spreadsheet?
Yes. Here is what AI can and cannot do with your Excel spreadsheet, how to prepare the file for good results, and how Plumb analyzes spreadsheets privately.
Data Cleaning
Step-by-step fixes for everyday spreadsheet and CSV problems: duplicates, dates, missing values, merges and more.
How to Combine Data from Multiple Sources
Combine data from CSV, Excel, JSON and app exports: pick a join key, standardize formats, handle mismatches, and prepare one clean dataset with Plumb.
How to Convert JSON to CSV (Including Nested JSON)
Convert JSON to CSV with Excel Power Query, Python pandas or jq, flatten nested objects and arrays, and extract clean tables automatically with Plumb.
How to Validate Data Before Sending a Report
A pre-send data validation checklist: row counts, totals, duplicates, blanks, date ranges and reconciliation, plus automated data quality checks with Plumb.
How to Find Unusual Values in Your Dataset
Find outliers and unusual values with conditional formatting, z-scores and the IQR method, and how AI anomaly detection catches patterns rules miss.
How to Standardize Column Names in Excel
Standardize Excel column headers into a consistent naming convention like snake_case, remove spaces and symbols, and map synonyms across files with Plumb.
How to Clean a Large CSV File Without Excel Crashing
Excel stops at 1,048,576 rows. Learn how to clean large CSV files with Power Query, Python chunking or DuckDB, or let Plumb process them without loading everything into memory.
How to Identify Errors in Your Spreadsheet
Find spreadsheet errors fast: formula errors, broken references, hard-coded numbers, type mismatches and outliers, plus how automated data auditing catches them.
How to Merge Multiple Excel Files into One
Merge multiple Excel files into one sheet using Power Query, copy-paste or Python, handle mismatched columns, and let Plumb align and combine them automatically.
How to Find Missing Values in a CSV File
Find missing values in a CSV with Excel, Python pandas or an AI data quality audit, including hidden blanks like 'N/A', 'null' and whitespace.
How to Fix Inconsistent Date Formats in Excel
Fix mixed date formats in Excel: spot dates stored as text, convert with DATEVALUE and Text to Columns, resolve DD/MM vs MM/DD, and automate it with Plumb.
How to Remove Duplicate Rows in Excel (and Catch the Near-Duplicates)
Remove exact duplicate rows in Excel with Remove Duplicates, COUNTIFS or UNIQUE, and find near-duplicates that Excel misses using AI duplicate detection.
How to Clean Messy Excel Data (Step by Step)
A practical checklist for cleaning messy Excel data: trim spaces, fix types, remove duplicates, standardize values, and how AI data cleaning does it in one pass.