A library item groups multiple files within one logical unit. Use the vSphere Automation API to perform various tasks with the items in a content library.
You can upload files to a library item in a local library and update existing items. You can download the content of a library item from a subscribed library and use the item, for example, to deploy a virtual machine. You can remove the content of a library item from a subscribed library to free storage space and keep only the metadata of the library item. When you no longer need local library items, you can delete them and they are removed from the subscribed library when a synchronization task is completed.
You can create a library item from a specific item type, for example .ovf and VM template. The Content Library service must support the library item type to handle the item correctly. If no support is provided for a specified type, the Content Library service handles the library item in the default way, without adding metadata to the library item or guiding the upload process. For information about the supported VM template types, see the vSphere Virtual Machine Administration documentation.