In the subpeona here it notes that databases should be provided in the "Excel (*.xls)" format. Considering that, AFAIK, that's undocumented and has no compliance checks – how would you even do that?
@ted Actually I think that's part of ECMA 376, spreadsheetML; https://www.ecma-international.org/publications-and-standards/standards/ecma-376/
@ted Surely they must include MS Office 97 installation disk and license with that subpoena! Or was it floppy back then?
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