If you don't know the content of your file, or the validator you need to choose to validate your document you can use the Message Content Analyzer.

1. Upload your file
2. Click on analyze
3. You should have the file description in result part (if you have any trouble, don't hesitate to write a Jira)

Now,

• You can click on each part of the tree or in the table to display the conten. You also can download each part.

• You can click on the green arrow or validate part (I'm lucky validation can directly send you to the result valitation of your part)

After you click on the refresh button, the validation permanent link is added to the table and the validation result is displayed in the tree.

This tool is still in developement, all remarks are accepted and you can open a Jira.