---
title: Downloading CSV files with custom Fixation Filters
description: Downloading CSV files with custom set fixation filters
---

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# Downloading CSV files with custom Fixation Filters

## Step-by-step guide to exporting CSV files with custom fixation filters.

---

[Fixations](http://support.realeye.io/eye-tracking-glossary?hsLang=en) are clusters of gaze points where the eye pauses, and they are defined using several key parameters. By default, CSV downloads for eye-tracking data use standard [Fixation Filter](http://support.realeye.io/fixation-filter?hsLang=en) settings. You can adjust them by applying custom parameters to the CSV file download link:

1. Go to your study dashboard and click "Export Data."
2. Choose the desired [CSV file](http://support.realeye.io/data-export-all-csv-files-available?hsLang=en), right-click it, and select "Copy link address. "
   
   ![](https://support.realeye.io/hs-fs/hubfs/image-png-Jan-02-2026-06-29-36-0885-PM.png?width=629&height=302&name=image-png-Jan-02-2026-06-29-36-0885-PM.png)
3. Open a new browser tab and paste the link (do not open it yet).
4. Add your custom parameters to the URL. Use `?` for the first variable and `&` for additional variables. Available parameters: 
     - `noiseReductionLevel` - expressed in number of frames
     - `minFixationDurationMs` - expressed in milliseconds
     - `maxFixationDurationMs` - expressed in milliseconds
     - `gazeVelocityThreshold` - expressed in %/s
     - `maxSaccadeDurationMs` - expressed in milliseconds

**Example:**

If you want to download [AOI Overall Stats CSV file](http://support.realeye.io/aoi-overall-stats-csv?hsLang=en) with a minimum fixation duration of 200 ms, a gaze velocity threshold of 40%/s, and a noise reduction level of 180 frames, your download link becomes:

`https://app.realeye.io/dashboard/report/study-aoi-overall-stats/study_id?minFixationDurationMs=200&gazeVelocityThreshold=40&noiseReductionLevel=180` 

 

You can also apply filters directly from the [Heatmap dashboard](http://support.realeye.io/how-to-analyze-heatmaps?hsLang=en). After setting your desired filters, click "Download" from the menu above the heatmap. All CSV files downloaded this way will include the selected filters automatically:

![](https://support.realeye.io/hs-fs/hubfs/image-png-Jan-02-2026-06-58-45-9060-PM.png?width=670&height=358&name=image-png-Jan-02-2026-06-58-45-9060-PM.png)

 

---

 

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