docs.sheetjs.com/docz/static/tauri/App.tsx

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import { useEffect, useState } from 'kaioken'
import { read, write, utils, version, WorkBook } from 'xlsx';
import { DialogFilter, message, open, save } from '@tauri-apps/api/dialog';
import { fetch, ResponseType } from '@tauri-apps/api/http';
import { readBinaryFile, writeBinaryFile } from '@tauri-apps/api/fs';
const filters: DialogFilter[] = [
{name: "Excel Binary Workbook", extensions: ["xlsb"]},
{name: "Excel Workbook", extensions: ["xlsx"]},
{name: "Excel 97-2004 Workbook", extensions: ["xls"]},
{name: "Excel 2003 XML Spreadsheet", extensions: ["xml"]},
{name: "Symbolic Link", extensions: ["slk"]},
{name: "Flat OpenDocument Spreadsheet", extensions: ["fods"]},
{name: "OpenDocument Spreadsheet", extensions: ["fods"]},
// ...
];
export default function SheetJSTauriKaioken() {
const [data, setData] = useState<any[][]>([[]])
const [origin, setOrigin] = useState("");
const update = (wb: WorkBook) => {
const ws = wb.Sheets[wb.SheetNames[0]];
const d = utils.sheet_to_json<any[]>(ws, { header: 1})
setData(d);
};
/* Load from File */
const openFile = async() => {
try {
const selected = await open({
title: "Open Spreadsheet",
multiple: false,
directory: false,
filters
}) as string;
const d = await readBinaryFile(selected);
const wb = read(d);
update(wb);
setOrigin(selected);
} catch(e) { await message((e as Error).message || (e as string), { title: "Load Error", type: "error"}); }
};
/* Save to File */
const saveFile = async() => {
try {
const selected = await save({
title: "Save to Spreadsheet",
filters
});
if(!selected) throw new Error("No file selected");
const ws = utils.aoa_to_sheet(data);
const wb = utils.book_new();
utils.book_append_sheet(wb, ws, "SheetJSTauri");
const d = write(wb, {type: "buffer", bookType: selected.slice(selected.lastIndexOf(".") + 1) as any}) as Uint8Array;
await writeBinaryFile(selected, d);
await message(`File saved to ${selected}`);
} catch(e) { await message((e as Error).message || (e as string), { title: "Save Error", type: "error"}); }
};
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/* Download from https://docs.sheetjs.com/pres.numbers */
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useEffect(() => {(async() => {
try {
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setOrigin("https://docs.sheetjs.com/pres.numbers");
const response = await fetch<Uint8Array>("https://docs.sheetjs.com/pres.numbers", { method: "GET", responseType: ResponseType.Binary });
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const wb = read(new Uint8Array(response.data));
update(wb);
} catch(e) { await message((e as Error).message || (e as string), { title: "Fetch Error", type: "error"}); }
})(); }, []);
return ( <div>
<h1><a href="https://sheetjs.com" target="_blank">
<img src="https://sheetjs.com/sketch128.png" className="logo" alt="SheetJS" />
SheetJS × Tauri {version}</a></h1>
<div className="centre"><button type="button" onclick={openFile}>Load Data</button> or
<button type="button" onclick={saveFile}>Save Data</button></div>
<p className="centre"><b className="centre">Data from { origin }</b></p>
<table className="center"><tbody>
{data.map((row) => <tr>
{row.map((cell) => <td>{cell}</td>)}
</tr>)}
</tbody></table>
</div>
);
}