We have problem with open, edit and save text file. This file have (we think) fake extention .dkr but it is text file. When we open this file in common text editors we see text but not only. They are problem with undefined chars and after save file (in php script or text editor) this file not working.
This file have saved state of form. When we load this file on web page where that file was create and downloaded it's work. But when we open in text editor (doesn't change anythink) and save that file stop work. We think is problem with encoding. So wee need php script to edit this file and save with this same format. we need only edit 2-3 fields for sure its work. If it will work we will self edit this script to make more changes. If you are interested we will send web page where you can test if its work fine and we describe how to do tests.
It's polish site soo we think there should be UTF-8 encoding - but not sure
If is problem in PHP script it can be in other language (C++ for example) but then wee need information how to edit that script.
In attachment is example of file what we need to edit.
7 freelancers are bidding on average $133 for this job
HI I am experienced in PHP Software Architecture C++ Programming etc I can start right now but i have few doubts and questions lets have a quick chat and get it started waiting for your reply