CalcPad

You can add images and 'comments', containing simple text, Html, CSS, SVG etc. Simply put question marks "?" wherever you need to enter values and generate beautiful Html input forms, out of your source code. Then you can lock and hide your source, by saving a cpdz file. A lot advanced features are available as well: conditions (#if, #else, #end if), cycles (#repeat, #loop), output visibility control (#hide, #show), content folding, smart rounding, smart brackets. The results are presented in professional looking Html reports. All formulas and values are included and can be thoroughly checked. That makes Calcpad a perfect solution for development of engineering spreadsheet.