In our company we have a small program (.exe 500Kb size) that does mathematical calculation and in the end it spits out the result on a Excel spreadsheet that we use to continue our workflow.I want to modify the columns, spacing format and add VBA logic etc. on the Excel spreadsheet but since this parameters are not configurable in that program, it seems to me the only way to modify it is to break down/reverse engineer the .exeNobody knows in what language it was programmed in, the only thing we know is:Developed 20+ years agoDeveloper retired 10 years agoGUI ApplicationRuns standaloneSize 500KbAny suggestions what options I have to deal with such kind of problems? Is reverse engineering the only option, or is there a better approach?
How to modify the output of a program for which you don't have the source code
programming languages;reverse engineering