When the CSV Column Extractor seems to misbehave, the cause is usually one of two things: something stopped the tool from running, or it ran but the result is not usable. This guide starts with the fastest checks, then walks through the common problems and exact fixes.
Quick Checks First
- Refresh the page - a stalled session is the most common cause of nothing happening.
- Confirm the input is not empty and actually contains what you meant to submit.
- Try the smallest possible input; if that works, the issue is size, not the tool.
- Turn off browser extensions that block scripts, then reload and test again.
- Update or switch browsers if the problem repeats across sessions.
Common Problems and How to Fix Them
Wrong columns came out
Column positions may have shifted - select by header name instead of index.
Header disappeared
Enable the header option so column names travel with the data.
Output has ragged rows
The source has inconsistent column counts; clean the file before extracting.
I need columns from a semicolon file
Convert the delimiter first, then extract.
Columns with the same name
Reference them by position when names collide.
Extraction dropped too much context
Include one identifier column alongside the data columns so rows stay traceable.
When It Works but the Output Is Poor
If the tool runs fine but the result misses, the problem is almost always the brief, not the software:
- Extracting by position when column order changed upstream
- Dropping a key column the import still needs
- Forgetting the header row in the output
- Removing columns that contain identifiers used elsewhere
How to Stop It Happening Next Time
- Keep a saved prompt template for every task you repeat.
- Change one setting per generation so causes stay obvious.
- Run a two-minute sanity test with known input after any update.
- Note every failure and its fix; a short troubleshooting log pays for itself.
Still Stuck?
Reproduce the problem with the smallest possible input and note the exact steps that triggered it. A one-line description of what you did, what you expected and what happened is enough to get a precise answer from support or a colleague.
Frequently Asked Questions
Can I reorder columns as well?
Yes - the output order follows the order you list the columns in.
Does it keep the header row?
Yes, headers are included by default so the result stays a valid CSV.
What about quoted fields containing commas?
Standard quoted CSV is respected throughout extraction.
Is my file stored?
No - extraction happens locally in your browser.
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