Big data analysis in QIIME2: how to obtain the level-7.csv

[Shreya (panchkarma)]

I obtained the table.qza from qiime2 and it contains almost 1600 samples in total. When I get the output of taxabarplot.qzv from the above table and import it in qiime2 view for visualisation, it crashes and I am unable to obtain the level-7.csv abundance file. Is there any other way to obtain the same from command line?
I have even tried export it into biom format and then converting the biom table to .tsv but it creates a file with zero abundances. using the following commands:

1. qiime tools export --input-path table12345678910.qza --output-path exported-feature-table1-10
2. biom convert -i exported-feature-table1-10/feature-table.biom -o feature-table.tsv --to-tsv

Hoping to find answers. Thanks!

[timanix (Timur Yergaliyev)]

Hello!
Qiime2 artifacts are zipped archives that can be:

• open with software that can handle .zip files
• unzipped with "unzip" command

In that case files are located in 'Data' folder within the archive.

There are also "export" and "extract" commands within qiime2 that can export files from of .qvz/.qza artifacts (check the "Exporting data" tutorial).

Best,