Hello,
I am derek, i understand the requirement, you need a pragram to convert data from pdf/rtf/doc/txt to excel(.xls/.xlsx). I can do that.
I have three years of development experience and familar with office development. I want to develop the program using openxml, either c++ or python is available. To keep it simple, the source data format should preferably be .txt, of course, .rtf and doc/docx is ok.
I am a new freelancer, so i don't have any cases, but i will try to do it best.
Best regards