CEESVEE Blog

Make peace with your CSV files.

Practical guides for working with CSV, TSV, and delimited files — opening huge files, fixing encodings, changing delimiters, regex find & replace, and more. From the team behind CEESVEE.

Guides3 min read

How to Open Large CSV Files Without Crashing Excel

Large CSV files freeze or crash Excel and Google Sheets. Here's why it happens and how to open big CSV files smoothly on Windows, macOS, and Linux.

June 16, 2026Read
How-to2 min read

How to Fix CSV Encoding Problems (UTF-8, UTF-16, Windows-1252)

Seeing é, , or question-mark boxes in your CSV? Here's how character encoding works and how to fix garbled CSV text on any platform.

June 15, 2026Read
Guides4 min read

How to Open a CSV File With a Million Rows

Got a CSV with a million-plus rows from a database or analytics export? Here's why Excel chokes and how to open and navigate it smoothly instead.

June 14, 2026Read
Guides5 min read

What to Do When Your CSV Is Too Big for Excel

Your CSV is too big for Excel? Here's why it hits the limit and four practical fixes: open it in a viewer built for scale, filter, split, or export a subset.

June 12, 2026Read
Comparisons4 min read

The Best CSV Editor for Windows (Free and Fast)

Looking for a fast, free CSV editor for Windows? Here's what to look for in a CSV editor and why a local, open-source tool beats Excel for big delimited files.

June 10, 2026Read
Comparisons5 min read

The Best CSV Editor for Mac (Free and Open Source)

Looking for a CSV editor on Mac? Here's what to look for, how to handle the first-launch Gatekeeper warning, and why CEESVEE is a great free, open-source pick.

June 9, 2026Read
Comparisons5 min read

The Best CSV Viewer for Linux (Free and Open Source)

Looking for a CSV viewer on Linux? Here's how to choose, how to run an AppImage or .deb on Ubuntu, Debian, or Fedora, and why CEESVEE is a free, open-source pick.

June 7, 2026Read
Comparisons5 min read

A Free Excel Alternative for CSV Files

A free Excel alternative built for CSV and delimited files: open huge files, fix encoding, and save faithfully without uploading anything to the cloud.

June 5, 2026Read
How-to5 min read

How to Edit CSV Files Without Excel

Learn how to edit CSV without Excel: open, fix cells, add columns, find and replace, sort, and save faithfully with a fast, free, local CSV editor.

June 3, 2026Read
How-to5 min read

How to Fix Garbled Characters (Mojibake) in a CSV

Seeing é, ’, , or � boxes in your CSV? That's mojibake — a decoding mismatch. Here's how to spot it and fix garbled CSV characters fast.

June 1, 2026Read
Comparisons5 min read

CSV vs TSV: What's the Difference?

CSV vs TSV explained in plain English: comma vs tab delimiters, the pros and cons of each, when to use them, and how to convert between the two formats.

May 29, 2026Read
CSV basics5 min read

CSV Delimiters Explained: Comma, Tab, Semicolon, and Pipe

What is a csv delimiter? Learn how comma, tab, semicolon, and pipe separators work, why European files use semicolons, and how auto-detection sorts it out.

May 27, 2026Read
How-to5 min read

How to Change a CSV Delimiter (the Safe Way)

Change a CSV delimiter from comma to semicolon, tab, or pipe without breaking fields. Why a naive find-and-replace fails, and how to re-save it correctly.

May 25, 2026Read
How-to4 min read

How to Open TSV Files (Tab-Separated Values)

Need to open TSV files but they keep landing in the wrong app or showing garbled tabs? Here's what a tab-separated file is and how to view and edit it properly.

May 23, 2026Read
How-to6 min read

How to Open Pipe-Delimited (PSV) Files

What is a pipe-delimited file? Learn how a .psv file works, why it looks like one column in plain editors, and how to open and edit it with the pipe delimiter.

May 21, 2026Read
CSV basics5 min read

What Is a BOM in a CSV File (and How to Handle It)?

A plain-English guide to the byte order mark (BOM) in CSV files: what the csv bom is, why UTF-8 files start with one, and how to add or remove it.

May 19, 2026Read
How-to6 min read

How to Find and Replace in a CSV With Regex

A practical guide to CSV find and replace with regex: clean phone numbers, trim whitespace, and fix dates safely using selection-scoped, reversible replaces.

May 16, 2026Read
Guides5 min read

How to Sort a Large CSV File (Without the Wait)

Need to sort a large CSV but Excel freezes or caps out? Here's why sorting big files is slow, what multi-column sort means, and how to do it fast then save.

May 14, 2026Read
CSV basics5 min read

CSV Line Endings Explained: LF vs CRLF

Confused about csv line endings? Learn how LF vs CRLF differ, why ^M characters and one-line files appear, and how to choose LF or CRLF on export.

May 12, 2026Read
Guides5 min read

Why Excel Ruins Your CSV Files (and How to Stop It)

The real, documented excel csv problems — stripped zeros, dates, scientific notation, encoding — and how to stop excel ruins csv mistakes for good.

May 10, 2026Read
Privacy5 min read

How to View CSV Files Without Uploading Them

Need an offline CSV viewer? Learn how to view CSV without uploading to a website, keep PII and financials private, and inspect files fully on your own machine.

May 8, 2026Read
How-to5 min read

How to Open Semicolon-Delimited CSV Files

Open a semicolon delimited CSV without it jamming into one column. Why European exports use semicolons, how to view and edit them, and how to convert to comma.

May 6, 2026Read
How-to5 min read

How to Set Your Default CSV App (Open With)

Stop Excel from grabbing every spreadsheet. Learn how to set a default CSV app and use Open With on Windows, macOS, and Linux for cleaner, faster files.

May 4, 2026Read
Guides4 min read

Get Sum, Average, and Counts From a CSV in Seconds

Need a csv sum, average, or count without writing a formula? See how live csv column statistics appear the instant you select cells, even on huge files.

May 2, 2026Read
How-to5 min read

How to Convert Between CSV and TSV (Without Breaking It)

How to convert CSV to TSV and TSV to CSV safely by re-serializing through a real parser, with numbered steps and the right encoding and line-ending settings.

April 30, 2026Read