1) For SAS programs there's a Code Importer wizard that is creating job and table metadata objects for you. Usually it requires some manual post processing to look good. 2) To import metadata from other vendors than DAD you use the Meta Data Bridges add on product. I couldn't find Btrieve as a supported interface there, but perhaps you can explore another option for interchange of metadata? But as @MT1985 says, you need to describe in more detail what those files are.
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