Data was downloaded from https://grch37.ensembl.org/biomart/martview/f4c200b649ceea16a7db20ec6e44b8f4. The specific columns to select are shown below: Click Attributes, select "Structures". Check these fields:
- GENE > Ensembl > Gene stable ID
- GENE > Ensembl > Chromosome/scaffold name
- GENE > Ensembl > Gene name
- GENE > Ensembl > Gene type
- EXON > Exon Information > Exon region start (bp)
- EXON > Exon Information > Exon region end (bp)
Click Results. Ensure "File" and "TSV" are selected in the drop-downs and click Go:
This downloaded file was then renamed as exon_file_default.txt.