Menus
The File and Edit menus give access to core operations — loading data, saving projects, importing new datasets, and editing labels and settings. Some mirror the toolbar and ribbon controls.
01The File menu
- New — resets CFTool and opens the Data Input Form, ready for a new dataset.
- Load Data — opens a file dialog to load a text data file (tab- or comma-separated); the imported data are plotted immediately in the main window.
- Open Project — opens a previously saved CFTool project (.cfp) file, including its data, fits, functions and all formatting.
- Save Project / Save Project As — save the current session (data, fits, labels, axes, titles, legend and styles) exactly as displayed. The original text data file created when you first entered data is not overwritten — it remains as a backup. Saving a project always creates a new file.
- Export — a submenu that saves numerical and textual results for the currently active line (see below).
- Print — opens the current graph in a new window for printing or image export.
- Open Recent — lists the ten most recently opened or saved files for quick access.
- Quit — closes the application.
02Export submenu
Exports results for the currently active line — each item writes a text file containing the corresponding data:
- Save Fit Data — the fitted-curve values.
- Save Residuals — the residuals data.
- Save Fit Info — the fit-information text window.
Integral and derivative. If an integral or derivative is plotted, extra items (Save Integral Data, Save Derivative Data) appear so you can export those results too.
03Printing and image export
The Print window lets you send the plot to a physical printer, or save an image file in one of several formats (.pdf, .svg, .png, .eps and others). It includes sliders for adjusting axis appearance before export.
Aspect ratio. The saved image adopts the same aspect ratio as the print window — resize the window to your preferred shape before saving or printing. By default the graph uses an A4 landscape ratio.
04The Edit menu
- Edit Data — opens the Data Input Form, the spreadsheet-style table for entering, pasting or editing X, Y and σ data.
- Import New Data / Blank Data Form — load or enter new data into an existing project without losing formatting or fit settings. Import from a file, or open a blank form and paste data manually. The new data replace the current dataset, but all labels, colours and fit configurations are retained.
- Clear Form — clears all data, file names and fit information from both lines, so you can start fresh while keeping your current settings.
- Clear Line 2 — removes only the second line (the Secondary or Function line) while preserving the primary line and its fit — useful when switching from a two-line comparison back to a single-dataset plot.
- Label Editor — opens the label-editing dialog for axes, titles, legend and line labels, with MathText (Greek symbols, sub/superscripts) and a live preview.
- Settings — opens the Settings dialog for general application preferences.
Keep a template. After importing new data into a project, save it under a new project name if you want to keep the original as a template.
05Summary
| Menu | Command | Description |
|---|---|---|
| File | New | Reset and open a new Data Input Form |
| File | Load Data | Open a text data file |
| File | Open Project | Load a saved project (.cfp) |
| File | Save Project / As | Save current data, fits and formatting |
| File | Export | Save fit, residuals, fit info, integral or derivative data |
| File | Print or export the figure image | |
| File | Open Recent | Access up to 10 recent files |
| File | Quit | Exit CFTool |
| Edit | Edit Data | Open the Data Input Form |
| Edit | Import New Data / Blank Data Form | Enter new data in an existing project |
| Edit | Clear Form | Clear all data and fits |
| Edit | Clear Line 2 | Remove the second line only |
| Edit | Label Editor | Edit axes, titles, legend and line labels |
| Edit | Settings | Open the Settings dialog |
