Ids.xls ~upd~

| Software | Compatibility | |----------|---------------| | Microsoft Excel (2003–current) | Native, may open in compatibility mode | | LibreOffice Calc | Free, open source, good .xls support | | Google Sheets | Upload to Google Drive → open as Google Sheet | | Apache OpenOffice | Free, basic support | | Online converters | Use only if file is non-sensitive (e.g., Zamzar, Convertio) |

(internal team or social media)