Choose a workflow. Nothing is calculated or loaded automatically.
One actual standalone tool is active at a time. Reset, Close or switching releases sources, imports, working tables and generated results. Filters leave the active table untouched. Export results before leaving; no sources, settings or working results transfer automatically.
Choose a spreadsheet/data workflow above. Edit, clean, combine or chart local tables entirely on your device.
Table formats and limits
CSV/TSV cells are text; no spreadsheet formulas, HTML or macros execute. Strict rectangular UTF-8 text tables only, not XLSX/XLS workbooks. The ten new tools support at most 200,000 source UTF-16 units, 5,000 records, 200 columns and 100,000 data cells. Shared JSON/CSV converters retain their original limits and controls. Exports include explicit formula protection; preview filters do not remove rows from downloads. No inputs or files move automatically between tools.
A FEW SIMPLE STEPS
How to use Spreadsheet & Data Workspace
Choose a workflow to open its actual standalone interface.
Import or paste data, review source settings and use the tool locally.
Inspect and download the actual generated result.
Reset, Close or switch to release the current tool. Inputs are not transferred automatically.
PRIVATE BY DESIGN
Why use this tool?
The workspace runs the same local interfaces and processing engines as the standalone tools. No sources, formulas or charts are sent to a server.
Tool inputs stay in your browser. Only your theme preference is saved on this device.
A few things worth knowing
Are sources shared automatically?
No. Each active tool owns its inputs, files and results. Copy or download a result explicitly if you want to use it elsewhere. Filters never switch the active workflow.
Are XLSX workbooks supported?
No. These tools work with bounded CSV, TSV, JSON and supported Markdown text tables. They do not execute spreadsheet formulas or preserve workbook formatting.