diff --git a/dist/Taskview/tasks/Details.d.ts b/dist/Taskview/tasks/Details.d.ts
index 49b6aa5..bb2b91c 100644
--- a/dist/Taskview/tasks/Details.d.ts
+++ b/dist/Taskview/tasks/Details.d.ts
@@ -9,6 +9,7 @@ export declare class Details extends ATask {
     private eventID;
     private _entityName;
     private $lineUpContainer;
+    private lineup;
     supports(attributes: IAttribute[], cohorts: ICohort[]): boolean;
     showSearchBar(): boolean;
     show(columnHeader: HTMLDivElement, container: HTMLDivElement, attributes: IAttribute[], cohorts: ICohort[]): Promise<void>;
@@ -18,4 +19,6 @@ export declare class Details extends ATask {
         name: string;
         color: string;
     }[];
+    close(): void;
+    download(): Promise<void>;
 }
diff --git a/dist/Taskview/tasks/Details.js b/dist/Taskview/tasks/Details.js
index 072397d..28c2f62 100644
--- a/dist/Taskview/tasks/Details.js
+++ b/dist/Taskview/tasks/Details.js
@@ -1,4 +1,5 @@
 import * as aq from 'arquero';
+import { select } from 'd3-selection';
 import * as LineUpJS from 'lineupjs';
 import { colors } from '../../colors';
 import { getCohortData } from '../../rest';
@@ -27,7 +28,16 @@ export class Details extends ATask {
         if (cohorts.length > 0) {
             this.$lineUpContainer = this.body.append('div').classed('lineup-container', true).node();
             this.$lineUpContainer.insertAdjacentElement('beforeend', getAnimatedLoadingText('data'));
+            select(columnHeader).selectAll('.export').remove();
             const data = await this.getData(attributes, cohorts);
+            select(columnHeader).append('button') // add button after the data is available
+                .text('Export Data')
+                .attr('type', 'button')
+                .attr('title', 'Export to CSV')
+                .classed('btn btn-coral-prime export', true)
+                .style('width', '18rem').style('margin-left', '1rem').style('margin-right', '1rem')
+                .on('click', async () => this.download());
+            columnHeader.insertAdjacentHTML('beforeend', `<a href="#" id="downloadHelper" class="export" target="_blank" rel="noopener"></a>`);
             if (eventId !== this.eventID) {
                 return;
             }
@@ -106,13 +116,24 @@ export class Details extends ATask {
         builder.rowHeight(21);
         builder.singleSelection(); // only single selection possible
         this.$lineUpContainer.firstChild.remove();
-        const lineup = builder.build(this.$lineUpContainer);
+        this.lineup = builder.build(this.$lineUpContainer);
     }
     getCategoryColorsForColumn(mergedDataArray, attr) {
         const uniqueCat = Array.from(new Set(mergedDataArray.map((elem) => elem[attr.dataKey])));
         const categoryColors = uniqueCat.map((cat, i) => { return { name: cat, color: CohortColorSchema.get(i) }; });
-        // log.debug('unique categories for "',attr.dataKey,'" : ', categoryColors);
         return categoryColors;
     }
+    close() {
+        super.close();
+        select(this.$columnHeader).selectAll('.export').remove();
+    }
+    async download() {
+        const data = await this.lineup.data.exportTable(this.lineup.data.getRankings()[0], { separator: ';' });
+        const b = new Blob([data], { type: 'text/csv' });
+        const downloadHelper = this.$columnHeader.querySelector('a#downloadHelper');
+        downloadHelper.href = URL.createObjectURL(b);
+        downloadHelper.download = 'coral-cohorts.csv';
+        downloadHelper.click();
+    }
 }
 //# sourceMappingURL=Details.js.map
\ No newline at end of file
diff --git a/dist/Taskview/tasks/Details.js.map b/dist/Taskview/tasks/Details.js.map
index 26207de..5b5b7a8 100644
--- a/dist/Taskview/tasks/Details.js.map
+++ b/dist/Taskview/tasks/Details.js.map
@@ -1 +1 @@
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\ No newline at end of file
+{"version":3,"file":"Details.js","sourceRoot":"","sources":["../../../src/Taskview/tasks/Details.ts"],"names":[],"mappings":"AAAA,OAAO,KAAK,EAAE,MAAM,SAAS,CAAC;AAC9B,OAAO,EAAC,MAAM,EAAC,MAAM,cAAc,CAAC;AACpC,OAAO,KAAK,QAAQ,MAAM,UAAU,CAAC;AAGrC,OAAO,EAAC,MAAM,EAAC,MAAM,cAAc,CAAC;AAEpC,OAAO,EAAC,aAAa,EAAC,MAAM,YAAY,CAAC;AACzC,OAAO,EAAC,iBAAiB,EAAE,sBAAsB,EAAC,MAAM,YAAY,CAAC;AACrE,OAAO,EAAC,mBAAmB,EAAC,MAAM,mBAAmB,CAAC;AACtD,OAAO,EAAC,UAAU,EAAC,MAAM,mBAAmB,CAAC;AAC7C,OAAO,EAAC,KAAK,EAAC,MAAM,SAAS,CAAC;AAE9B,MAAM,OAAO,OAAQ,SAAQ,KAAK;IAAlC;;QACS,UAAK,GAAG,eAAe,CAAC;QACxB,OAAE,GAAG,SAAS,CAAC;QACf,cAAS,GAAG,KAAK,CAAC;QACjB,YAAO,GAAG,CAAC,CAAC;QACZ,gBAAW,GAAW,IAAI,CAAC;IAsIrC,CAAC;IAlIC,QAAQ,CAAC,UAAwB,EAAE,OAAkB;QACnD,OAAO,OAAO,CAAC,MAAM,GAAG,CAAC,CAAC;IAC5B,CAAC;IAED,aAAa;QACX,OAAO,IAAI,CAAC;IACd,CAAC;IAED,KAAK,CAAC,IAAI,CAAC,YAA4B,EAAE,SAAyB,EAAE,UAAwB,EAAE,OAAkB;QAC9G,KAAK,CAAC,IAAI,CAAC,YAAY,EAAE,SAAS,EAAE,UAAU,EAAE,OAAO,CAAC,CAAC;QACzD,MAAM,OAAO,GAAG,EAAE,IAAI,CAAC,OAAO,CAAC,CAAC,4FAA4F;QAE5H,IAAI,OAAO,CAAC,MAAM,GAAG,CAAC,EAAE;YACtB,IAAI,CAAC,gBAAgB,GAAG,IAAI,CAAC,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC,OAAO,CAAC,kBAAkB,EAAE,IAAI,CAAC,CAAC,IAAI,EAAE,CAAC;YACzF,IAAI,CAAC,gBAAgB,CAAC,qBAAqB,CAAC,WAAW,EAAE,sBAAsB,CAAC,MAAM,CAAC,CAAC,CAAC;YACzF,MAAM,CAAC,YAAY,CAAC,CAAC,SAAS,CAAC,SAAS,CAAC,CAAC,MAAM,EAAE,CAAC;YAEnD,MAAM,IAAI,GAAG,MAAM,IAAI,CAAC,OAAO,CAAC,UAAU,EAAE,OAAmB,CAAC,CAAC;YACjE,MAAM,CAAC,YAAY,CAAC,CAAC,MAAM,CAAC,QAAQ,CAAC,CAAC,yCAAyC;iBAC5E,IAAI,CAAC,aAAa,CAAC;iBACnB,IAAI,CAAC,MAAM,EAAE,QAAQ,CAAC;iBACtB,IAAI,CAAC,OAAO,EAAE,eAAe,CAAC;iBAC9B,OAAO,CAAC,4BAA4B,EAAE,IAAI,CAAC;iBAC3C,KAAK,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC,KAAK,CAAC,aAAa,EAAE,MAAM,CAAC,CAAC,KAAK,CAAC,cAAc,EAAE,MAAM,CAAC;iBAClF,EAAE,CAAC,OAAO,EAAE,KAAK,IAAI,EAAE,CAAC,IAAI,CAAC,QAAQ,EAAE,CAAC,CAAC;YAC5C,YAAY,CAAC,kBAAkB,CAAC,WAAW,EAAE,oFAAoF,CAAC,CAAC;YACnI,IAAI,OAAO,KAAK,IAAI,CAAC,OAAO,EAAE;gBAAC,OAAO;aAAC;YACvC,IAAI,CAAC,YAAY,CAAC,IAAI,EAAE,UAAU,EAAE,OAAO,CAAC,CAAC;SAC9C;IACH,CAAC;IAED,KAAK,CAAC,OAAO,CAAC,UAAwB,EAAE,OAAiB;QACvD,MAAM,MAAM,GAAG,mBAAmB,CAAC,OAAO,CAAC,CAAC,CAAW,CAAC,CAAC;QACzD,IAAI,CAAC,WAAW,GAAG,MAAM,CAAC,UAAU,CAAC;QAErC,MAAM,YAAY,GAAG,OAAO;aACzB,GAAG,CAAC,CAAC,GAAG,EAAE,EAAE;YACX,MAAM,OAAO,GAAG,IAAI,OAAO,CAAC,KAAK,EAAE,OAAO,EAAE,MAAM,EAAE,EAAE;gBACpD,MAAM,eAAe,GAAG,UAAU,CAAC,GAAG,CAAC,CAAC,IAAI,EAAE,EAAE,CAAC,IAAI,CAAC,OAAO,CAAC,GAAG,CAAC,IAAI,CAAC,CAAC,CAAC;gBACzE,IAAI,UAAU,CAAC,MAAM,KAAK,CAAC,EAAE,EAAE,sFAAsF;oBACnH,eAAe,CAAC,IAAI,CAAC,aAAa,CAAC,EAAC,QAAQ,EAAE,GAAG,CAAC,IAAI,EAAE,SAAS,EAAE,MAAM,CAAC,UAAU,EAAC,CAAC,CAAC,CAAC;iBACzF;gBACD,IAAI;oBACF,MAAM,OAAO,GAAG,MAAM,OAAO,CAAC,GAAG,CAAC,eAAe,CAAC,CAAC,CAAC,0GAA0G;oBAC9J,IAAI,UAAU,GAAG,EAAE,CAAC,IAAI,CAAC,OAAO,CAAC,CAAC,CAAC,CAAC,CAAC;oBACrC,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,OAAO,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE;wBACvC,UAAU,GAAG,UAAU,CAAC,SAAS,CAAC,EAAE,CAAC,IAAI,CAAC,OAAO,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;qBACxD;oBACD,MAAM,UAAU,GAAG,EAAE,CAAC,KAAK,CAAC,EAAC,CAAC,UAAU,CAAC,EAAE,CAAC,CAAC,EAAE,GAAG,GAAG,CAAC,IAAI,CAAC,CAAC,EAAE,CAAC,KAAK,GAAG,GAAG,CAAC,IAAI,CAAC,EAAE,CAAC,MAAM,CAAC,EAAC,CAAC,CAAC;oBAC7F,UAAU,GAAG,UAAU,CAAC,SAAS,CAAC,UAAU,EAAE,CAAC,IAAI,EAAE,KAAK,EAAE,EAAE,CAAC,IAAI,CAAC,CAAC;oBACrE,OAAO,CAAC,UAAU,CAAC,OAAO,EAAE,CAAC,CAAC;iBAC/B;gBAAC,OAAO,CAAC,EAAE;oBACV,MAAM,CAAC,CAAC,CAAC,CAAC;iBACX;YACH,CAAC,CAAC,CAAC;YACH,OAAO,OAAO,CAAC;QACjB,CAAC,CAAC,CAAC;QACL,MAAM,QAAQ,GAAU,CAAC,MAAM,OAAO,CAAC,GAAG,CAAC,YAAY,CAAC,CAAC,CAAC,IAAI,EAAE,CAAC;QACjE,MAAM,GAAG,GAAG,IAAI,GAAG,EAAe,CAAC;QACnC,KAAK,MAAM,IAAI,IAAI,QAAQ,EAAE;YAC3B,IAAI,UAAU,GAAG,GAAG,CAAC,GAAG,CAAC,IAAI,CAAC,IAAI,CAAC,WAAW,CAAC,CAAC,CAAC;YACjD,IAAI,UAAU,EAAE;gBACb,UAAU,CAAC,UAAU,CAAmB,CAAC,IAAI,CAAC,GAAG,IAAI,CAAC,UAAU,CAAC,CAAC,CAAC;gBACpE,UAAU,GAAG,MAAM,CAAC,MAAM,CAAC,IAAI,EAAE,UAAU,CAAC,CAAC;aAC9C;iBAAM;gBACL,UAAU,GAAG,IAAI,CAAC;gBAClB,UAAU,CAAC,UAAU,CAAC,GAAG,UAAU,CAAC,UAAU,CAAC,CAAC,KAAK,EAAE,CAAC,CAAC,yCAAyC;aACnG;YACD,GAAG,CAAC,GAAG,CAAC,IAAI,CAAC,IAAI,CAAC,WAAW,CAAC,EAAE,UAAU,CAAC,CAAC;SAC7C;QACD,MAAM,IAAI,GAAG,KAAK,CAAC,IAAI,CAAC,GAAG,CAAC,MAAM,EAAE,CAAC,CAAC;QACtC,OAAO,IAAI,CAAC;IACd,CAAC;IAED,KAAK,CAAC,YAAY,CAAC,IAAI,EAAE,UAAU,EAAE,OAAO;QAC1C,MAAM,OAAO,GAAG,QAAQ,CAAC,OAAO,CAAC,IAAI,CAAC,CAAC;QAEvC,mBAAmB;QACnB,OAAO;aACJ,MAAM,CAAC,QAAQ,CAAC,iBAAiB,CAAC,IAAI,CAAC,WAAW,CAAC,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC,KAAK,CAAC,GAAG,CAAC,CAAC;aAC3E,MAAM,CAAC,QAAQ;aACb,sBAAsB,CAAC,UAAU,EAAE,OAAO,CAAC,GAAG,CAAC,CAAC,GAAG,EAAE,EAAE,CAAC,CAAC,EAAC,IAAI,EAAE,EAAE,GAAG,GAAG,CAAC,IAAI,EAAE,KAAK,EAAE,GAAG,CAAC,KAAK,EAAE,KAAK,EAAG,GAAc,CAAC,aAAa,EAAC,CAAC,CAAC,CAAC;aACzI,QAAQ,CAAC,YAAY,EAAE,aAAa,CAAC;aACrC,KAAK,EAAE,CACT,CAAC;QAEJ,2BAA2B;QAC3B,KAAK,MAAM,IAAI,IAAI,UAAU,EAAE;YAC7B,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC,OAAO,KAAK,IAAI,CAAC,WAAW,CAAC,CAAC,CAAC,QAAQ,CAAC,CAAC,CAAC,IAAI,CAAC,IAAI,CAAC;YACrE,IAAI,IAAI,CAAC,IAAI,KAAK,aAAa,EAAE;gBAC/B,OAAO;qBACJ,MAAM,CAAC,QAAQ,CAAC,sBAAsB,CAAC,IAAI,CAAC,OAAO,CAAC,CAAC,KAAK,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC,CAAC;aAC5E;iBAAM,IAAI,IAAI,CAAC,IAAI,KAAK,QAAQ,EAAE;gBACjC,OAAO,CAAC,MAAM,CAAC,QAAQ,CAAC,iBAAiB,CAAC,IAAI,CAAC,O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\ No newline at end of file
diff --git a/dist/scss/components/task/_details.scss b/dist/scss/components/task/_details.scss
index baaf520..fb013ec 100644
--- a/dist/scss/components/task/_details.scss
+++ b/dist/scss/components/task/_details.scss
@@ -3,7 +3,7 @@
 
   .lu-side-panel {
     // 20em is the value from the LineUpJs scss
-    width: 20em; // otherwise tdp_core/../_view_lineup.scss sets it to 100% 
+    width: 20rem; // otherwise tdp_core/../_view_lineup.scss sets it to 100% 
     &.lu-collapsed{
       width: 0;
     }
diff --git a/src/Taskview/tasks/Details.ts b/src/Taskview/tasks/Details.ts
index fff0145..11857df 100644
--- a/src/Taskview/tasks/Details.ts
+++ b/src/Taskview/tasks/Details.ts
@@ -1,4 +1,5 @@
 import * as aq from 'arquero';
+import {select} from 'd3-selection';
 import * as LineUpJS from 'lineupjs';
 import {Cohort} from '../../Cohort';
 import {ICohort} from '../../CohortInterfaces';
@@ -17,6 +18,7 @@ export class Details extends ATask {
   private eventID = 0;
   private _entityName: string = null;
   private $lineUpContainer: HTMLDivElement;
+  private lineup: LineUpJS.LineUp;
 
   supports(attributes: IAttribute[], cohorts: ICohort[]) {
     return cohorts.length > 0;
@@ -33,8 +35,17 @@ export class Details extends ATask {
     if (cohorts.length > 0) {
       this.$lineUpContainer = this.body.append('div').classed('lineup-container', true).node();
       this.$lineUpContainer.insertAdjacentElement('beforeend', getAnimatedLoadingText('data'));
+      select(columnHeader).selectAll('.export').remove();
 
       const data = await this.getData(attributes, cohorts as Cohort[]);
+      select(columnHeader).append('button') // add button after the data is available
+        .text('Export Data')
+        .attr('type', 'button')
+        .attr('title', 'Export to CSV')
+        .classed('btn btn-coral-prime export', true)
+        .style('width', '18rem').style('margin-left', '1rem').style('margin-right', '1rem')
+        .on('click', async () => this.download());
+      columnHeader.insertAdjacentHTML('beforeend', `<a href="#" id="downloadHelper" class="export" target="_blank" rel="noopener"></a>`);
       if (eventId !== this.eventID) {return;}
       this.createLineup(data, attributes, cohorts);
     }
@@ -114,14 +125,29 @@ export class Details extends ATask {
     builder.rowHeight(21);
     builder.singleSelection(); // only single selection possible
     this.$lineUpContainer.firstChild.remove();
-    const lineup = builder.build(this.$lineUpContainer);
+    this.lineup = builder.build(this.$lineUpContainer);
   }
 
 
   getCategoryColorsForColumn(mergedDataArray: any[], attr: IAttribute): {name: string, color: string}[] {
     const uniqueCat = Array.from(new Set(mergedDataArray.map((elem) => elem[attr.dataKey])));
     const categoryColors = uniqueCat.map((cat, i) => {return {name: cat, color: CohortColorSchema.get(i)};});
-    // log.debug('unique categories for "',attr.dataKey,'" : ', categoryColors);
     return categoryColors;
   }
+
+  close() {
+    super.close();
+    select(this.$columnHeader).selectAll('.export').remove();
+  }
+
+  async download() {
+    const data = await this.lineup.data.exportTable(this.lineup!.data.getRankings()[0], {separator: ';'});
+    const b = new Blob([data], {type: 'text/csv'});
+
+    const downloadHelper = this.$columnHeader.querySelector('a#downloadHelper') as HTMLAnchorElement;
+    downloadHelper.href = URL.createObjectURL(b);
+    downloadHelper.download = 'coral-cohorts.csv';
+    downloadHelper.click();
+  }
+
 }
diff --git a/src/scss/components/task/_details.scss b/src/scss/components/task/_details.scss
index baaf520..fb013ec 100644
--- a/src/scss/components/task/_details.scss
+++ b/src/scss/components/task/_details.scss
@@ -3,7 +3,7 @@
 
   .lu-side-panel {
     // 20em is the value from the LineUpJs scss
-    width: 20em; // otherwise tdp_core/../_view_lineup.scss sets it to 100% 
+    width: 20rem; // otherwise tdp_core/../_view_lineup.scss sets it to 100% 
     &.lu-collapsed{
       width: 0;
     }