SAS - Macro to convert XLSX to CSV

sas_macro_convert_xlsx_csv.sas

/*This program will take a folder path (default) and look for files
that are specifically with the specified extension (ext) and convert
the files to CSV. It uses XCMD so you need to have that option enabled. 

The original script is from here:
http://support.sas.com/kb/43/496.html

Modified to convert XLSX to CSV. 
Author:F. Khurshed
Date: 2018-03-23
*/


options noxwait noxsync; 
 
%macro convert_files(default=,ext=);
 
data _null_;
file "'&default\temp.vbs'";
put "set xlapp = CreateObject(""Excel.Application"")";
put "set fso = CreateObject(""scripting.filesystemobject"")";
put "set myfolder = fso.GetFolder(""&default"")";
put "set myfiles = myfolder.Files";
put "xlapp.DisplayAlerts = False";
put " ";
put "for each f in myfiles";
put "  ExtName = fso.GetExtensionName(f)";
put "  Filename= fso.GetBaseName(f)";
put "    if ExtName=""&ext"" then";
put "           set mybook = xlapp.Workbooks.Open(f.Path)"; 
put "           xlapp.Visible = false";
put "           mybook.SaveAs ""&default.\"" & Filename & "".csv"", 6";
put "    End If";
put "  Next";
put "  mybook.Close";
put "  xlapp.DisplayAlerts = True";
/* Removes original files */
/*put " FSO.DeleteFile(""&default\*.&ext""), DeleteReadOnly";*/
put " xlapp.Quit";
put " Set xlapp = Nothing";
put " strScript = Wscript.ScriptFullName";
put " FSO.DeleteFile(strScript)"; 
run; 
 
x "cscript ""&default\temp.vbs""";
 
%mend;