Forum Discussion
Open a file only in a certain date
I have some data in Excel that I have saved as a CSV file. But I want that file to be allowed to be opened only from a certain date on. Is there anyway of doing that?
4 Replies
- yeah, i can make it 🙂
- use import data -> from extrernal links-> then go to date and time website, get the date link,
than, fill the data you want to show in the sheet and apply protection on it, now, you have to fill password for unencrpting the data into one cell and apply formula to show password when date and time of the cell are equal to thaat of required daete, protect that cell also ,so as no one cna change its value
- I'm not an expert on security of files like this. My sense, though, is that CSV files are among the most basic of text-based files, and they can be opened pretty much at will by just about any program.
So unless there's a way to surround it with some other shell file format (ZIP?) that contains an unlock date....unless there's something along those lines, the way to accomplish your objective without fail is to not distribute it until that certain date.
