Assertion: spreadsheet's data | /r/HasProperty | arranged in an xls file
Facets:
Source sentences:
text: Data is arranged in an XLS file as binary streams in the form of a compound file as described in [MS-CFB]. Data is stored in the compound file by using storages, streams, and substreams that contain information about the content and structure of a workbook, including workbook data such as worksheet definitions.