docs.sheetjs.com/docz/docs/03-demos/03-desktop/04-tauri.md

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---
title: Tauri
pagination_prev: demos/mobile
pagination_next: demos/grid
sidebar_position: 4
sidebar_custom_props:
summary: Webview + Rust Backend
---
import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';
The [NodeJS Module](/docs/getting-started/installation/nodejs) can be imported
from JavaScript code.
This demo was tested against Tauri 1.0.5 on 2022 August 13.
:::note
Tauri currently does not provide the equivalent of NodeJS `fs` module. The raw
`@tauri-apps/api` methods used in the examples are not expected to change.
:::
`http` and `dialog` must be explicitly allowed in `tauri.conf.json`:
```json title="tauri.conf.json"
"allowlist": {
"all": true,
"http": {
"all": true,
"request": true,
"scope": ["https://**"]
},
"dialog": {
"all": true
}
```
The "Complete Example" creates an app that looks like the screenshot:
![SheetJS Tauri MacOS screenshot](pathname:///tauri/macos.png)
<details><summary><b>Complete Example</b> (click to show)</summary>
0) [Read Tauri "Getting Started" guide and install dependencies.](https://tauri.app/v1/guides/getting-started/prerequisites)
1) Create a new Tauri app:
```bash
npm create tauri-app
```
When prompted:
- App Name: `SheetJSTauri`
- Window Title: `SheetJS + Tauri`
- UI recipe: `create-vite`
- Add "@tauri-apps/api": `Y`
- ViteJS template: `vue-ts`
2) Enter the directory:
```bash
cd SheetJSTauri
```
Open `package.json` with a text editor and add the highlighted lines:
```json title="package.json"
{
"name": "SheetJSTauri",
"private": true,
"version": "0.0.0",
"type": "module",
"scripts": {
"dev": "vite",
"build": "vue-tsc --noEmit && vite build",
"preview": "vite preview",
"tauri": "tauri"
},
"dependencies": {
// highlight-next-line
"@tauri-apps/api": "^1.0.2",
"vue": "^3.2.37",
// highlight-next-line
"xlsx": "https://cdn.sheetjs.com/xlsx-latest/xlsx-latest.tgz"
},
"devDependencies": {
// highlight-next-line
"@tauri-apps/cli": "^1.0.5",
"@vitejs/plugin-vue": "^3.0.3",
"typescript": "^4.6.4",
"vite": "^3.0.7",
"vue-tsc": "^0.39.5"
}
}
```
3) Install dependencies:
```bash
npm install --save https://cdn.sheetjs.com/xlsx-latest/xlsx-latest.tgz
```
4) Enable operations by adding the highlighted lines to `tauri.conf.json`:
```json title="src-tauri/tauri.conf.json"
"tauri": {
"allowlist": {
// highlight-start
"http": {
"all": true,
"request": true,
"scope": ["https://**"]
},
"dialog": {
"all": true
},
// highlight-end
"all": true
}
```
In the same file, look for the `"identifier"` key and replace the value with `com.sheetjs.tauri`:
```json title="src-tauri/tauri.conf.json"
"icons/icon.ico"
],
// highlight-next-line
"identifier": "com.sheetjs.tauri",
"longDescription": "",
```
5) Download [`App.vue`](pathname:///tauri/App.vue) and replace `src/App.vue`
with the downloaded script.
6) Build the app with
```bash
npm run tauri build
```
At the end, it will print the path to the generated program. Run the program!
</details>
### Reading Files
There are two steps to reading files: obtaining a path and reading binary data:
```js
import { read } from 'xlsx';
import { open } from '@tauri-apps/api/dialog';
import { readBinaryFile } from '@tauri-apps/api/fs';
const filters = [
{name: "Excel Binary Workbook", extensions: ["xlsb"]},
{name: "Excel Workbook", extensions: ["xlsx"]},
{name: "Excel 97-2004 Workbook", extensions: ["xls"]},
// ... other desired formats ...
];
async function openFile() {
/* show open file dialog */
const selected = await open({
title: "Open Spreadsheet",
multiple: false,
directory: false,
filters
});
/* read data into a Uint8Array */
const d = await readBinaryFile(selected);
/* parse with SheetJS */
const wb = read(d);
return wb;
}
```
### Writing Files
There are two steps to writing files: obtaining a path and writing binary data:
```js
import { write } from 'xlsx';
import { save } from '@tauri-apps/api/dialog';
import { writeBinaryFile } from '@tauri-apps/api/fs';
const filters = [
{name: "Excel Binary Workbook", extensions: ["xlsb"]},
{name: "Excel Workbook", extensions: ["xlsx"]},
{name: "Excel 97-2004 Workbook", extensions: ["xls"]},
// ... other desired formats ...
];
async function saveFile(wb) {
/* show save file dialog */
const selected = await save({
title: "Save to Spreadsheet",
filters
});
/* Generate workbook */
const bookType = selected.slice(selected.lastIndexOf(".") + 1);
const d = write(wb, {type: "buffer", bookType});
/* save data to file */
await writeBinaryFile(selected, d);
}
```