CDOCS_ARCH_IDX is a standard SAP Table which is used to store CDOCS: Index of Archived Files data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The CDOCS_ARCH_IDX table consists of various fields, each holding specific information or linking keys about CDOCS: Index of Archived Files data available in SAP. These include GUID (UUID in X form (binary)), ARCHIVE_NAME (Key for Archive File), OBJ_OFFSET (Archive file data object offset)... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .