> For the complete documentation index, see [llms.txt](https://knowledge.illumina.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://knowledge.illumina.com/microarray/general/microarray-general-reference_material-list/000006706.md).

# Creating Custom Cluster Files for Infinium Genotyping Arrays in GenomeStudio Support Webinar

This support webinar video discusses the basics of cluster files including when to use a custom cluster file, why custom cluster files are needed, as well as the detailed steps required to create your own custom cluster file. Learn how to cluster the SNPs on your custom array by properly filtering and manually editing the file.

{% embed url="<https://www.youtube.com/watch?v=4JTrbMUbVN0&ab_channel=Illumina>" %}

Video length: 42:11 min

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| *For any feedback or questions regarding this article (Illumina Knowledge Article #6706), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000006706%20-%20Microarray%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |


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