Dear Tom, I sincerely appreciate your value observation. Upon thorough examination and careful consideration, I have concluded that the most prudent and effective approach would be to PROC LIBRARY step because depends on several factors, such as file size, access frequency, processing needs, and execution environment. For small files and occasional access, INFILE is the simplest and most efficient option. For medium or large files, or when complex processing is required, PROC ZIP or PROC LIBRARY are better options. If flexible file access or control over processing is needed, the SAS Viya REST API or SAS Event Stream may be more suitable alternatives. In other words, to summarize: Factor infile proc zip proc library SAS Viya REST API SAS Event Stream File size Small Medium/Large Medium/Large Any Any Access frequency Occasional Frequent Frequent Variable Frequent Processing needs Basic Complex Variable Complex Complex Execution environment SAS Studio, SAS Enterprise Guide SAS Studio, SAS Enterprise Guide SAS Studio, SAS Enterprise Guide SAS Viya SAS Viya
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