Ids.xls [better] -

– older Excel formats can contain macros ( .xls can have embedded VBA macros, unlike .xlsx which is macro-free by default). If the file is from an unknown sender, scan with antivirus or open in Google Sheets (which strips macros).

Data can be quickly sorted, filtered, and manipulated without needing a database administrator. ids.xls

If you can provide the of ids.xls , I will rewrite the paper specifically for your data. – older Excel formats can contain macros (