# Add ContentTypes
Use this format to add content type(s) to a document library. The filename should contain DoclibContentType and format is xls(x)/csv.
The following columns are required:
Url or MatterCode
ContentTypes
RemoveIfNotSpecified (optional)
Specify the name of the content types, use a ; or , as a separator.
If RemoveIfNotSpecified is true, existing contenttypes that are linked with the doclib and not specified in ContentTypes are removed.