diff --git a/apps/api/src/routes/admin.ts b/apps/api/src/routes/admin.ts
index cb6046b..23d3cd2 100644
--- a/apps/api/src/routes/admin.ts
+++ b/apps/api/src/routes/admin.ts
@@ -5,6 +5,7 @@ import { db } from '../db/client';
 import { activities, user, workSessions } from '../db/schema';
 import { getSessionUser, isAdmin } from '../lib/require-user';
 import { toWorkSession } from '../lib/work-session';
+import { buildSessionsCsv } from '../lib/csv';
 
 function computeDuration(startMs: number, endMs: number, paused: number): number {
   return Math.max(0, Math.round((endMs - startMs) / 1000) - paused);
@@ -230,6 +231,41 @@ adminRoutes.get('/api/admin/report', async (c) => {
   });
 });
 
+adminRoutes.get('/api/admin/export', async (c) => {
+  const q = parseReportQuery(c);
+  if (!q) return c.json({ error: 'Invalid query' }, 400);
+
+  const rows = await db
+    .select(baseSelect)
+    .from(workSessions)
+    .leftJoin(activities, eq(workSessions.activityId, activities.id))
+    .leftJoin(user, eq(workSessions.userId, user.id))
+    .where(and(...buildSessionFilters(q)))
+    .orderBy(asc(workSessions.startTime));
+
+  const csv = buildSessionsCsv(
+    rows.map((r) => ({
+      id: r.session.id,
+      activityName: r.activityName,
+      userName: r.userName,
+      insoleType: r.session.insoleType,
+      pairCount: r.session.pairCount,
+      startTime: r.session.startTime,
+      endTime: r.session.endTime,
+      durationSeconds: r.session.durationSeconds,
+      pausedSeconds: r.session.pausedSeconds,
+    })),
+    { includeWorker: true },
+  );
+
+  const fromDate = q.from.toISOString().slice(0, 10);
+  const toDate = q.to.toISOString().slice(0, 10);
+  return c.body(csv, 200, {
+    'Content-Type': 'text/csv; charset=utf-8',
+    'Content-Disposition': `attachment; filename="solelog-report_${fromDate}_${toDate}.csv"`,
+  });
+});
+
 // Manual create → always completed, source='manual', duration derived server-side.
 adminRoutes.post('/api/admin/sessions', async (c) => {
   const parsed = CreateManualSessionInput.safeParse(await c.req.json().catch(() => null));
diff --git a/apps/api/test/report.test.ts b/apps/api/test/report.test.ts
index 69396c3..c25beb0 100644
--- a/apps/api/test/report.test.ts
+++ b/apps/api/test/report.test.ts
@@ -133,3 +133,58 @@ describe('GET /api/admin/report', () => {
     expect(body.by_type).toEqual([]);
   });
 });
+
+describe('GET /api/admin/export', () => {
+  it('401s without a token and 403s for a worker', async () => {
+    const app = createApp();
+    expect((await app.request(`/api/admin/export?${WIDE}`)).status).toBe(401);
+    const workerTok = await authToken(app, 'export-admin-worker@example.com');
+    const res = await app.request(`/api/admin/export?${WIDE}`, { headers: bearer(workerTok) });
+    expect(res.status).toBe(403);
+  });
+
+  it('exports all workers with a leading Worker column, range in the filename', async () => {
+    const app = createApp();
+    const adminTok = await authToken(app, 'export-admin@example.com', 'admin');
+    const a = await authToken(app, 'export-allusers-a@example.com');
+    const b = await authToken(app, 'export-allusers-b@example.com');
+    const act = await seedActivity('Frezen');
+    await completed(app, a, act, 'Kurk', 90, 2);
+    await completed(app, b, act, 'Berk', 60, 2);
+
+    // Scope to this test's own activity so the all-users export isolates from the
+    // sessions other tests seed into the shared, run-scoped DB.
+    const res = await app.request(`/api/admin/export?${WIDE}&activity_id=${act}`, {
+      headers: bearer(adminTok),
+    });
+    expect(res.status).toBe(200);
+    expect(res.headers.get('content-type')).toContain('text/csv');
+    expect(res.headers.get('content-disposition')).toMatch(
+      /attachment; filename="solelog-report_\d{4}-\d{2}-\d{2}_\d{4}-\d{2}-\d{2}\.csv"/,
+    );
+
+    const lines = (await res.text()).split('\n');
+    expect(lines[0]).toBe(
+      '"Worker","ID","Task","Insole Type","No. of Insoles","Date","Total Duration","Paused Duration","Start Time","End Time"',
+    );
+    expect(lines).toHaveLength(3); // header + 2 workers' sessions
+    expect(lines.some((l) => l.includes('export-allusers-a'))).toBe(true);
+    expect(lines.some((l) => l.includes('export-allusers-b'))).toBe(true);
+  });
+
+  it('respects the type filter', async () => {
+    const app = createApp();
+    const adminTok = await authToken(app, 'export-typefilter-admin@example.com', 'admin');
+    const a = await authToken(app, 'export-typefilter-a@example.com');
+    const act = await seedActivity('Lijmen');
+    await completed(app, a, act, 'Kurk', 30, 2);
+    await completed(app, a, act, 'Berk', 40, 2);
+
+    const res = await app.request(`/api/admin/export?${WIDE}&activity_id=${act}&insole_type=Berk`, {
+      headers: bearer(adminTok),
+    });
+    const lines = (await res.text()).split('\n');
+    expect(lines).toHaveLength(2); // header + only the Berk row
+    expect(lines[1]).toContain('"Berk"');
+  });
+});