app.project.item(index).mainSource.file
app.project.item(index).proxySource.file
Description
The ExtendScript File object for the file that defines this asset. To change the value:
• If this FileSource is a proxySource of an AVItem, call setProxy() orsetProxyWithSequence().
• If this FileSource is a mainSource of a FootageItem, call replace() orreplaceWithSequence().
Type
File object; read-only.