# Enabling visualization for a VCF case

**Loading local alignment files\* to your case in Emedgene.**

Visualization is automatically available for cases analyzed from **FASTQ** or **BAM** files. For cases analyzed only from **VCF files**, read alignment visualization can still be enabled by providing **alignment files** (BAM+BAI or CRAM+CRAI).

You can enable mapping visualization for a VCF case in three ways:

1. **API-based case creation:** Define the location of alignment files directly in the JSON payload.
2. **Batch upload:** Include the paths to visualization files in the input CSV when uploading cases in bulk.
3. **Manual upload of local alignment files:**

* Click the Load local file button on top of the Visualization section.
* Select relevant alignment files stored on your PC.
* Once uploaded, choose which samples to visualize by selecting their names from the top of the viewer.

![](https://1131024994-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGCW0DnLlE7QjoZPNmKIi%2Fuploads%2Fgit-blob-e90a4e9a5583fe107cb99df518d4a1ede22514ad%2Fenabling_visualization_for_a_vcf_case_1_image.png?alt=media)