If your goal is to download a list of accessions in a .txt format to use with tools like enaBrowserTools or Webin-CLI :
Are you trying to data from ENA or upload your own research?
: Large sequence files (Fastq, BAM) must be compressed using gzip before the text manifest references them. 🚀 Recommended Tools Webin-CLI
Data submitted to or downloaded from the ENA often uses specific tab-delimited text formats.