I have 2 set of data, 1 in CSV and 1 in XLSX. Would like to know same data but data type different (CSV vs. XLSX), but why SAS output columns sequence different? CSV format: I import 3 CSV data in SAS and perform data merging into 1. output result: Column a b c XLSX format: I import 2 XLSX data in SAS and perform data merging into 1. output result: Column b c a
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