You can also export translation files here https://prnt.sc/1x2wwfo:
Theme – https://xstore.8theme.com/glotpress/projects/xstore-theme/ar/default/
Core plugin – https://xstore.8theme.com/glotpress/projects/xstore-core-plugin/ar/arabic/
After that install and activate Loco Translate plugin > Themes (Plugins) > XStore (XStore core) > upload po file https://prnt.sc/1x2x345 Choose System location and import file. Edit translation according to your needs.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.