||The INDSTAT datasets contain metadata, i.e. data giving additional information.
In the metadata there is important information about the source of data (e.g. which organization gathered the information), special circumstances (e.g. counting only establishments with 5 or more employees) and data processing (e.g. the original classification was ISIC Rev. 4, data was converted to ISIC Rev. 3)
Metadata is published in separate excel sheets, each includes all the additional information pertaining to a certain variable.