Kindly find the attached module to manage the stock (i.e price and qty)
1) Make sure that import folder is there into your root/base folder and have proper rights to save the file
2) Keep the same name of the CSV (the code is a little bit dependent on file name. So when u download, make sure before importing that you have updated the file name(if needed))
Do let me know if anyone needs any help with the attached code.