1，npm install mammoth
2，在页面中使用

<template>
  <input type="file" id="fileInput" />
</template>

<script setup lang="ts">
import { onMounted, onBeforeUnmount, ref, shallowRef } from 'vue'
import mammoth from 'mammoth'

onMounted(() => {
  document.getElementById('fileInput').addEventListener('change', function (e) {
    const file = e.target.files[0];
    console.log(file)
    if (file.name.indexOf('.docx') < 0) return alert('只支持上传docx后缀的表格!')
    console.log(file)
    const reader = new FileReader();
    reader.readAsArrayBuffer(file)
    reader.onload = (event) => {
      mammoth.convertToHtml({ arrayBuffer: event.target.result })
        .then(result => {
          console.log(result.value)
        });
    };
  })
});
</script>

备注：解出来的html没有内联样式，只能解出来内容