The existence of computer media or electronic files can be noted in the Description of the Papers. Otherwise, if electronic files are arranged at the series level, this can be discussed in the series scope and content note.
If electronic files have been printed out, rather than left in electronic form, this should be noted. If they have been printed out because the electronic file was damaged or otherwise problematic, be sure to note that the file was “salvaged” from the electronic version. If some files are printed out and others are left in electronic form, provide the rationale for this decision.