Language pack management
Language pack management is difficult without proper tools. You may have multiple resource files that are updated constantly, how can these files be translated and managed during ongoing development?
Get Localization is designed for this purpose.
Uploading Master Files
Master files are the files that are source for the other translations. You can add them easily from Files tab:

If you have multiple master files, you can upload them as a ZIP file as well.
NOTE: You should only have master files in one language. If you want to translate from several languages, please create new projects for each master file language. The amount of target languages is not limited.
