To create an archive from scratch, follow these steps:
Go to File > New > New from Templates.
Choose your particular type of archive template. For example, select one of the
ODF, OOXML, or EPUB
templates.
Click Next and choose the
name and location of the file.
Click Finish.
A skeleton archive is saved on disk and open in Eclipse.
Tip:
Use toolbar and contextual menu actions to edit, add, and remove
resources from the archive. For EPUB archives, you can use the Validate
action to verify the integrity of the EPUB archive.