... code on SourceForge, GitHub, etc. and use commits and pulls to get/submit changes, with branches for new features such as the import/export facilities. There would be no need for alternative OS versions, conversions, Lazarus, etc. Hi John, If only it was that simple! Templot is now an old, old, program and it shows. Thanks for drawing my attention to the Delphi Community Edition. It seems to have been introduced only 12 months ago in July 2018: http://blog.marcocantu.com/blog/2018-july-delphi-ce.html i.e. unfortunately that was after I made the decision to make a version of Templot available as open source in May 2018. Hence my decision to go with Lazarus: topic 3189- message 24831 topic 3288 However, the actual version of Delphi which I'm using is Delphi5 from 1998. It will likely need a lot of work to compile in modern Delphi, not least because that now uses 16-bit unicode for the basic string type, whereas earlier versions of Delphi ...