RowMint Blog
Practical guides for cleaning, extracting, and organizing spreadsheet and document data — grounded in the tools we actually built.
2026-07-23
How to Remove Duplicate Rows in Excel (and When Not To)
A practical guide to finding and removing duplicate rows in Excel — including the cases where deleting a 'duplicate' is actually a mistake.
2026-07-23
Why Your Dates Look Wrong in Excel (and How to Fix Them for Good)
Excel dates break in predictable ways — mixed formats, text-as-date, and locale mismatches. Here's what's actually happening and how to clean it up.
2026-07-23
Turning a Photo of an Invoice Into a Spreadsheet
How RowMint's Invoice to Excel tool reads a photographed invoice — what it extracts automatically, what needs your review, and how your image is handled.
2026-07-23
What Actually Happens to Your File When You Use an Online Excel Tool
A plain-language explanation of client-side vs. server-side file processing, and exactly how RowMint handles your files in each case.
2026-07-23
Trailing Spaces Are Silently Breaking Your VLOOKUPs
A single invisible space at the end of a cell can make VLOOKUP, MATCH, and exact-text filters fail — here's why, and how to clean it up.
2026-07-23
CSV vs. Excel: Which Format Should You Actually Use?
CSV and Excel solve different problems. Here's a practical way to decide which one you actually need for a given file.
2026-07-23
How to Merge Multiple Excel Files Without Losing Formatting
Keep each file as a separate sheet, or combine all rows into one table — understand the tradeoff between preserving formatting and merging data.
2026-07-23
Splitting One Massive Workbook Into Per-Sheet Files
How to split a multi-sheet Excel workbook into separate files — one per sheet, delivered as a single .zip.
2026-07-23
A Practical Checklist for Auditing Messy Spreadsheet Data
A concrete, tool-by-tool checklist for finding the real problems in a messy spreadsheet before you build a report on top of it.
2026-07-23
What Excel File Repair Actually Fixes (and What It Doesn't)
Excel File Repair removes empty sheets and fixes duplicate sheet names — here's exactly what it does and doesn't address, so you know when to reach for it.
2026-07-23
How to Compare Two Excel Files and Actually Trust the Result
Find added, removed, and changed rows by matching on a key column — understand what makes that key column trustworthy for accurate file comparison.
2026-07-23
Fixing Messy Header Formatting Across Spreadsheets
Clean Excel Data fixes whitespace and formatting problems in header row text — here's exactly what that covers, and what still needs a manual rename.
2026-07-23
Why Some PDFs Paste Perfectly Into Excel and Others Don't
The real difference between a PDF that converts cleanly and one that turns into garbage — and how to tell which one you have before you try.
2026-07-23
Ten Excel Formulas Every Analyst Reuses Constantly
The lookups, conditional sums, and error handlers that show up in almost every real spreadsheet — plus when it's faster to just describe what you want.
2026-07-23
Converting a JSON API Response Into an Excel Sheet
The JSON shape that converts to a clean spreadsheet in one step, what happens with nested data, and how to fix a response that doesn't fit.