Protect Excel file for Subscription Purpose


1. Provided excel file must only will works on 1 PC/Laptop, not even VM.

Example, Mr. A has the excel file that were assigned to Laptop A, he can only use the excel on Laptop A, not any other PC/Laptop /google sheet/cloud

2. Excel file will have to login using email address and password as they open, and it will check ID status to hosting server for valid ID & password and Expiry date. For now, we're thinking just a text file or DB (MySQL) that hosted at web hosting, it reads for ID and date, any other better suggestion, are welcome, we're expecting more than 10 users for start, the list can grow bigger. Dual IP login at the same time will lock the access excel file.

3. All excel file will check local date and time via any NTP ip for the current date and time.

4. Once ID and current dates are met, then user will be able to work on the excel file.

5. If working on macro's, need to ensure user cant disable macro's or bypass it.

6. The excel file are worksheet protected, and it only allows certain cells to edit. Client must not able to copy out any details

7. Any other suggestion to protect the excel file are welcome, or we might add as we hit the milestones.

Skills: .NET, Excel, Visual Basic

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About the Employer:
( 0 reviews ) Klang, Malaysia

Project ID: #14724103

19 freelancers are bidding on average RM3286 for this job


As I understand you want sell some calculation files. I suggest to change excel file to some webservice/website that will do the work. You could not protect excel file on local pc in any case Relevant Skills and Exper More

RM44736 MYR in 30 days
(11 Reviews)

Greetings sir, i am an expert freelancer for this job and your 100% satisfaction is assured if you allow me to serve. I can do this task as per your requirement Relevant Skills and Experience I have the 5 years of ex More

RM900 MYR in 3 days
(177 Reviews)

What you are asking for is not easy but yes it is not impossible as well. :) I have done something like this in the past. Relevant Skills and Experience My Credentials: 20+ of Excel/VBA Experience. [login to view URL] More

RM2000 MYR in 3 days
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hi. I have done this in my past projects. I have built a lot of tools for Excel. here's one of my recent projects with Excel: ---( )--- I can do the server authenticati More

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Most things are possible...however for some points...workaround will be required...and for some..discussion needs to be done.. Relevant Skills and Experience 3 Proposed Milestones RM916 MYR - desc

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Hi I'm an expert in .Net technologies and SQL Server. I have been working in software development for the last 20 years I'm a specialist in web solutions and desktop applications Habilidades y experiencia relevante More

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Hello, I have been working as freelancer since last ~ 5 years,prior to this was working with a MNC as an Sr. Software Professional. Below are some key areas of my skills: -- VBA and Excel,Word,Office Applicat More

RM3333 MYR in 6 days
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Excel expert here with more than 12 years of professional experience. Relevant Skills and Experience This will require advanced VBA and Macros. Proposed Milestones RM513 MYR - To be discussed Let's discuss and make More

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Hi, Experienced Data Analyst and Macro Developer. I have read your instructions carefully. I have excellent knowledge and experience of creating User Form, Command Button, Drop Down, Radio Buttons, List Boxes More

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With respect to this project I would like to present myself as a candidate for your consideration. I have more than 8 years of IT experience. I have successfully completed few projects for US clients Relevant Skills a More

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Though I am new here but my team has 4 years of experience into Website Design and Development across all Platforms especially on . Can very well execute this Project and can start immediately.

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We have read your job and we can provide you with the skills you require. We use to work to time lines and meeting clients' expectations with prompt communication. Relevant Skills and Experience Some of our clients ar More

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A proposal has not yet been provided

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Project seems straightforward. Done a similar protection for a large project in the past. Final solution will be a combination of reading/writing to db, environment variables and interruption disable. Relevant Skill More

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