Just for info.
You can do this just with the file in and csv nodes, both set to a single message array.
You can select the entries required using the columns input field, and give the properties names.
e.g.
[{"id":"6531d35ffed78268","type":"inject","z":"9a86d59e88442f2c","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":350,"y":400,"wires":[["da28d0ba.59f458"]]},{"id":"da28d0ba.59f458","type":"template","z":"9a86d59e88442f2c","name":"simulate file in","field":"payload","fieldType":"msg","format":"handlebars","syntax":"mustache","template":"1,2,3,4,5,6,7,8,9,0\nq,w,e,r,t,y,u,i,o,p\na,s,d,f,g,h,j,k,l,z\nx,c,v,b,n,m,<,>,?,@\n","output":"str","x":290,"y":460,"wires":[["13d6da58.add826"]]},{"id":"13d6da58.add826","type":"csv","z":"9a86d59e88442f2c","name":"Select required using columns","sep":",","hdrin":"","hdrout":"none","multi":"mult","ret":"\\n","temp":",,,,,a,b,c,d,e","skip":"0","strings":true,"include_empty_strings":"","include_null_values":"","x":590,"y":460,"wires":[["b2e4905caef8626e"]]},{"id":"b2e4905caef8626e","type":"debug","z":"9a86d59e88442f2c","name":"debug 23","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":730,"y":500,"wires":[]}]