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EARLY RELEASE 0.1.6

Install in Tableau Cloud

Start in a test workbook before rolling it out to your team.

1. Ask your administrator to allow Wrapped Bars.

   Under Settings → Extensions, allow this URL. Summary data access is sufficient; full underlying data access is not required.

   https://extensions.jacksontwo.com/tableau/wrapped-bars/v1/.*

   Email your administrator
   Opens a draft in your email app. Add your administrator’s email address before sending.

2. Add the extension to a worksheet.

   Download WrappedBars.trex. Use the Marks menu → Add Extension → Access Local Viz Extensions, and select that file. The file points Tableau to our hosted extension.

3. Choose your data.

   Place one dimension on Category and one nonnegative measure on Value. Tableau controls the aggregation.

4. Set the look and publish.

   Use Format Extension to choose wrapping, labels, colors, and whether viewers can change the wrap amount. Apply updates the chart and keeps settings open; Save applies changes and closes settings. Save or publish the workbook to retain author settings.

   For published views, viewers need Tableau’s Download Summary Data permission so the extension can read the chart values. They do not need to download the extension separately.

Viewer controls

The Wrap at control is hidden by default. Authors can enable “Allow viewers to adjust wrap amount” in the Wrapping section of Format Extension. When enabled, Wrap at offers Auto, presets, and a custom amount. Reset restores the author’s setting. Viewer changes last for the current extension session.

Optional values appear in the bottom bar of each group. “Show cumulative guide labels” is enabled by default in Format Extension and adds muted 1k, 2k, 3k-style totals at the right end of each full bar. Guides restart for each category and follow the selected wrap amount. Turn them off in Bars & values if preferred. In Axis, “Show axis title” independently hides the centered, bold title while leaving the axis and tick labels visible.

Your data and privacy

Wrapped Bars reads the chart’s summary data to draw the bars in your browser. The current extension does not upload worksheet data to Jackson Two, Cloudflare, or another application backend.

What happens when I open a chart?

1. Your browser loads the extension’s application files from our Cloudflare-hosted website.
2. Tableau supplies worksheet summary data, such as category names and aggregated sales values, to the extension running in your browser. The extension also reads Tableau’s formatting to style the chart.
3. The extension draws the wrapped bars in your browser. It reads updated summary data when the worksheet data changes, for example after filtering.

Changing Wrap at redraws the values already in memory; it does not upload them to our hosting.

What information does our hosting receive?

Cloudflare receives standard website request information, including your IP address and browser request details, when it serves the application files. Our extension does not include worksheet values in those requests. We have not built data uploads, analytics tracking, or backend storage for worksheet data into Wrapped Bars.

Why does Tableau ask for permission?

The extension needs access to worksheet summary data to draw the chart, so your Tableau administrator must allow it on your site. That approval matters even though chart processing happens in your browser. Wrapped Bars does not request full underlying data access.

Where are my settings saved?

Author formatting settings are saved through Tableau with the workbook. Viewer wrap adjustments stay in memory for the current extension session. The standalone demo uses sample data and saves its formatting preferences in your browser’s local storage.

These details describe the current Wrapped Bars release. See our Privacy & data notice for more information.

Compatibility & limits

Requires Tableau 2025.1 or newer (Extensions API 1.13). This is an early release: the integration was tested in Tableau Cloud using a local development host. Verification of the public hosted installation is still pending.

Use one summarized mark per category. Null, negative, and nonnumeric measures are excluded with a message. Views are limited to 2,000 categories and 5,000 bar rows. Custom mark selection and Tableau actions are not implemented.

Accessibility

Use Tab to move between controls and Enter or Space to activate buttons. Wrap options and formatting fields have text labels and visible keyboard focus. In the demo, Escape closes the formatting dialog.

Open “View chart data” below the bars for a table of complete category names and values, including labels shortened in the chart. The table follows the chart’s sort order.

Keep good contrast when choosing custom colors. Muted cumulative guides are supplementary; complete values are available in the data table. Keyboard navigation and browser accessibility semantics are checked during development. Testing with assistive technology inside Tableau is still pending; we do not claim accessibility certification.