This module provides a taxonomy terms export in CSV format for Drupal taxonomy terms 7 to 8 migration.

INSTALLATION:
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1. Goto your Drupal site, path: sites/all/modules.

2. Enable the "Taxonomy export csv" module by navigating to:

administer > modules

CONFIGURATION:
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1. Go to below URL:
admin/config/system/migrate_taxonomy

2. Select vocabulary and click "Export terms" button.

RESULT:
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Download expected vocabulary terms in CSV format.