This program has been created for sharing research data which are in tabular format and which requires different access levels for different people. The user must use this software at their own risk. This program must not be used for any unlawful purposes. This program requires R and RStudio to run. Please download R from https://www.r-project.org/. Please download RStudio from https://posit.co/download/rstudio-desktop/. Install R first and then RStudio. Open the file "Encrypt columns of data" in RStudio. Allow RStudio to install the necessary packages by clicking on install before you run. You must have the rights to install the libraries on the computer. If you want to store the encrypted data and the keys for encryption in the local computer, please remove the “#” (first character) in line 8. If you want to store the encrypted data and the keys for encryption in a server, please provide the appropriate server address in line 8. This also requires appropriate authentication. You can also host this as a shiny app to enable people without access to installations of R and RStudio. You can find further instructions on the left panel on how to perform the necessary functions. The prompts and messages also guide you on the process. The results of some tests that we performed are available as "results_columns_of_data_testing.zip". The codes used for testing are avaiable in "Encrypt columns of data testing.R"