GEPRO is a spreadsheet-based data managing platform for organizing miocroarray data, performing statistical analysis, and displaying the results. Using GEPRO’s filtering and sorting capability, a user can easily identify differentially expressed genes, display the expression profiles of the genes of interest, and save them as tables or graphs in a user-defined folder. The following downloadable files are prepared to help users in using the GEPRO for their own database construction. Before using any of the following files, adjust the security level of Excel to "MEDIUM". To do this, open Excel and click on the "Tools" menu, and then choose "Macro". When the Security window is open, select "MEDIUM". Once you finish this step and try to open any of the following files, you will be asked whether "disable macros" or "enable macros".  Choose “enable macros”.