I want so sell excel spreadsheets online - how can I protect it?
$30-250 USD
Closed
Posted almost 6 years ago
$30-250 USD
Paid on delivery
I am currently developing 8-10 rather simple excel spreadsheets for students who study business economics. I want to sell them on a website (i build myself). However, I would like to add copy protection. I researched, and found XLS Padlock, but this program makes an .exe file, and does not run on a macbook. Maybe it is possible, to convert the excel file to .jar or similar, and make it work?
Hi there.....
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Hello I can password protect your file using only a Excel's built in function without changing file format. That way you can sell your files as Excel and only give the password after you receive payment. Feel free to message me if you want to discuss your project.
hi there
i think that you found the right person for acheive this work its"me"but i can give you a sample before starting the work and after you decide
I can create an encryption algorithm that will ask for an serial key upon the spreadsheet is executed and after the first input will register the serial key and the spreadsheet will be locked to be executed only on that computer.
I have made calculators in excel that needed the exact thing. You limit the access to a few cells, lock the rest and also not let anyone know how you calculated them. Trust me, even you will not be able to make out if you loose your password.