# Fastq.gz data does not open on Windows -- RE: Incomplete download or incompatible gz compression

**URL:** <https://help.galaxyproject.org/t/fastq-gz-data-does-not-open-on-windows-re-incomplete-download-or-incompatible-gz-compression/1062>\
**Category:** usegalaxy.org support\
**Tags:** fastqgz\
**Created:** [April 11, 2019, 3:01am UTC](https://help.galaxyproject.org/t/fastq-gz-data-does-not-open-on-windows-re-incomplete-download-or-incompatible-gz-compression/1062 "2019-04-11T03:01:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![OSIRIS](https://avatars.discourse-cdn.com/v4/letter/o/839c29/32.png) [@OSIRIS](https://help.galaxyproject.org/u/OSIRIS)\
**Post date:** [April 11, 2019, 3:01am UTC](https://help.galaxyproject.org/t/fastq-gz-data-does-not-open-on-windows-re-incomplete-download-or-incompatible-gz-compression/1062/1 "2019-04-11T03:01:16Z")

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I separated my sequences using the primers of the genes 16s and 18s using the barcode splitter tool, then I converted them into fastq.gz format, because it is the format that requires them. When I want to open my sequences in Winrar, I get a message that the format is damaged, and I know that it is not a winrar problem because I have other sequences of the same format (fastq.gz) and I don’t have any problem to open them.

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**Author:** ![jennaj](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/jennaj/32/27_2.png) [@jennaj](https://help.galaxyproject.org/u/jennaj)\
**Post date:** [April 11, 2019, 2:54pm UTC](https://help.galaxyproject.org/t/fastq-gz-data-does-not-open-on-windows-re-incomplete-download-or-incompatible-gz-compression/1062/2 "2019-04-11T14:54:18Z")

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Let’s close this thread and keep follow up in the original Q&A here: [Barcode splitter how to convert fastasanger to fastaq](https://help.galaxyproject.org/t/barcode-splitter-how-to-convert-fastasanger-to-fastaq/1061/4?u=jennaj)

In short, the compression formats are most likely incompatible. Or, the data was not completely downloaded.

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**Author:** ![jennaj](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/jennaj/32/27_2.png) [@jennaj](https://help.galaxyproject.org/u/jennaj)\
**Post date:** [April 11, 2019, 2:54pm UTC](https://help.galaxyproject.org/t/fastq-gz-data-does-not-open-on-windows-re-incomplete-download-or-incompatible-gz-compression/1062/3 "2019-04-11T14:54:24Z")

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