diff --git a/.github/workflows/build-rustpy-xlsxwriter.yml b/.github/workflows/build-rustpy-xlsxwriter.yml
new file mode 100644
index 000000000..74eadaa30
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+++ b/.github/workflows/build-rustpy-xlsxwriter.yml
@@ -0,0 +1,99 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+# This workflow is based on the `linux` job of
+# https://github.com/rahmadafandi/rustpy-xlsxwriter/blob/0.6.1/.github/workflows/CI.yml
+name: Build rustpy-xlsxwriter wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'rustpy-xlsxwriter version to build (git tag, e.g. 0.6.1)'
+        required: true
+        default: '0.6.1'
+  pull_request:
+    paths:
+      - '.github/workflows/build-rustpy-xlsxwriter.yml'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ inputs.version || '0.6.1' }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read  # to fetch code (actions/checkout)
+
+env:
+  # `inputs.version` is empty on pull_request events; default to 0.6.1 there.
+  RUSTPY_XLSXWRITER_VERSION: ${{ inputs.version || '0.6.1' }}
+  MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64
+
+jobs:
+  setup:
+    uses: $/.github/workflows/_setup.yml
+
+  build_wheels:
+    needs: [setup]
+    name: Build rustpy-xlsxwriter ${{ inputs.version || '0.6.1' }} ${{ matrix.python }}-manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        # rustpy-xlsxwriter's [tool.maturin] features only lists
+        # "pyo3/extension-module" (no abi3), so every interpreter needs its own
+        # build.
+        python: ["cp312", "cp313", "cp314", "cp314t"]
+
+    steps:
+      - name: Checkout rustpy-xlsxwriter ${{ env.RUSTPY_XLSXWRITER_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: rahmadafandi/rustpy-xlsxwriter
+          ref: ${{ env.RUSTPY_XLSXWRITER_VERSION }}
+          persist-credentials: false
+
+      - name: Build and test wheel
+        uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074  # v4.2.0
+        with:
+          output-dir: wheelhouse/
+        env:
+          CIBW_BUILD: ${{ matrix.python }}-manylinux_riscv64
+          CIBW_MANYLINUX_RISCV64_IMAGE: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          # rustpy-xlsxwriter ships no [tool.cibuildwheel], so the Rust
+          # toolchain its maturin backend needs is installed in-container here.
+          CIBW_BEFORE_ALL_LINUX: >-
+            curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+          CIBW_ENVIRONMENT_LINUX: >-
+            PATH="$PATH:$HOME/.cargo/bin"
+            PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
+          CIBW_TEST_ENVIRONMENT: >-
+            PIP_ONLY_BINARY=numpy,pandas,pyarrow,polars-runtime-32,polars-runtime-64
+          # pandas has no cp314t wheel on our registry yet, and it's needed
+          # transitively by several test modules; skip testing that leg
+          # (the wheel itself still builds).
+          CIBW_TEST_SKIP: cp314t-*
+          CIBW_TEST_SOURCES: tests
+          # pyarrow is not in upstream's [project.optional-dependencies] tests
+          # extra but is in their frozen dev requirements.txt: pandas 3's
+          # __arrow_c_stream__ needs it, and without it pandas falls back to a
+          # slower path that mishandles NaT (test_csv.py::TestCSVArrowPath).
+          CIBW_TEST_REQUIRES: pytest faker openpyxl pandas pyarrow polars
+          CIBW_TEST_COMMAND: >-
+            python -m pytest tests/ -v -ra --durations=0 -m "not benchmark"
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: rustpy-xlsxwriter-${{ env.RUSTPY_XLSXWRITER_VERSION }}-${{ matrix.python }}-manylinux_riscv64
+          path: wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish rustpy-xlsxwriter ${{ inputs.version || '0.6.1' }}
+    needs: [setup, build_wheels]
+    permissions:
+      contents: write
+      pull-requests: write
+    uses: $/.github/workflows/_publish-wheel.yml
+    with:
+      artifact-pattern: rustpy-xlsxwriter-${{ inputs.version || '0.6.1' }}-*-manylinux_riscv64