How to remove unused columns from an analytics export
- Step 1Export the analytics report as CSV — Download from GA4, Amplitude, or Mixpanel using the export or download option.
- Step 2Drop the CSV into Column Remover — The tool reads your full header list.
- Step 3Remove dimension and metric columns you do not need — Tick all surplus columns — event parameters, empty metrics, internal IDs.
- Step 4Load the slim file into your BI tool — Download and import into Looker Studio, Tableau, or Excel with a clean column set.
Frequently asked questions
Can I remove columns from a file larger than 2 MB?+
Yes on Pro. Free handles files up to 2 MB.
Will removing empty columns affect chart data?+
No. Only the removed columns are affected. All values in remaining columns are preserved as-is.
Is analytics export data uploaded?+
No. The CSV stays in your browser throughout.
Privacy first
Processing runs locally in your browser with PapaParse. No file is uploaded — only metadata counters are saved for signed-in dashboard stats.