Merge multiple csv file into one file

Dear all Developers,

i want to create an app to merge multiple excel file into one file.
i have try but i can not do it, any one could help me.

thanks

Have you tried googling? Have you looked on stackoverflow.com because
this
isn’t exactly an uncommon problem…at all.

–Rob
Sent from my phone…excuse any typos please!

yes, i got it now.
thank