The ASCII File Format Guidelines for Earth Science Data lists recommended practices for formatting and describing ASCII encoded data files, such that the files will be self-describing and adhere to common conventions. Included recommendations address: General Structure, Header Information, Data Information, Location Information, Time Information, Missing Data, Limits of Detection, and Filenames.
This table is taken from the in Appendix B of that document. The checklist summarizes the requirements and recommendations contained in the document. File formats that have been vetted with the checklist appear in the columns to the right of the checklist items. To see more information about these file formats, click on the name of the format in the table, or in the list of formats below