Nummern Instructions (Development Build)

These instructions are generated from the current Nummern specification and reflect a development-stage workflow.

Features may change and UI labels may be adjusted before any public release.

Quick start

Create or open a Nummern document.
Click Add Sheet to create a new canvas tab.
Click Add Table to place a table on the sheet canvas.
Double-click cells to enter values, then use drag/resize handles for layout.
Use Import CSV to bring data into a new table.

Working with formulas

Enter spreadsheet formulas with `=` syntax (for example `=SUM(B0:B9)`).
Click cells while editing a formula to insert references and ranges.
Use relative and absolute-style references as supported by the formula engine.
Advanced mode supports Python expressions for selected formula targets.

Code panel workflow

UI actions append to the generated Python log section.
Use Run Selection for partial code execution or Run All for full document rebuild.
Reset Runtime runs the script in a fresh Python process.
Use Export NumPy to create a portable script output.

Selection and editing behavior

Single click selects cells, ranges, tables, or charts depending on target.
Double-click enters cell edit mode.
Command-click/drag supports multi-range selection within one table.
Enter/Return commits edits; Escape cancels in-cell editing and clears selection state.

Safety and scripting

Nummern can execute Python code that you write or load from documents. Review script content before running it, especially when opening files from external sources.

See the Privacy Policy for data and runtime behavior details.