Нашел вот такой пример
https://github.com/nithin-baby/js-xlsx-style/blob/...
скопипастил, однако выдает файл без стилей(
Может кто подскажет
import * as XLSX from 'xlsx';
import FileSaver from 'file-saver'
export default function generateXLSX(json){
save()
}
function datenum(v, date1904) {
if(date1904) v+=1462;
var epoch = Date.parse(v);
return (epoch - new Date(Date.UTC(1899, 11, 30))) / (24 * 60 * 60 * 1000);
}
function sheet_from_array_of_arrays(data, opts) {
var ws = {};
var range = {s: {c:10000000, r:10000000}, e: {c:0, r:0 }};
for(var R = 0; R != data.length; ++R) {
for(var C = 0; C != data[R].length; ++C) {
if(range.s.r > R) range.s.r = R;
if(range.s.c > C) range.s.c = C;
if(range.e.r < R) range.e.r = R;
if(range.e.c < C) range.e.c = C;
var cell = {v: data[R][C] };
if(cell.v == null) continue;
var cell_ref = XLSX.utils.encode_cell({c:C,r:R});
if(typeof cell.v === 'number') cell.t = 'n';
else if(typeof cell.v === 'boolean') cell.t = 'b';
else if(cell.v instanceof Date) {
cell.t = 'n'; cell.z = XLSX.SSF._table[14];
cell.v = datenum(cell.v);
}
else cell.t = 's';
if(C == 0){
cell.s={
font:{
bold:true
}
}
}
if(R == 0){
cell.s={
fill:{
fgColor:{ rgb: "FFFFAA00" }
}
}
}
ws[cell_ref] = cell;
}
}
if(range.s.c < 10000000) ws['!ref'] = XLSX.utils.encode_range(range);
return ws;
}
function Workbook() {
if(!(this instanceof Workbook)) return new Workbook();
this.SheetNames = [];
this.Sheets = {};
}
function s2ab(s) {
var buf = new ArrayBuffer(s.length);
var view = new Uint8Array(buf);
for (var i=0; i!=s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
return buf;
}
function save(){
/* original data */
var data = [[1,2,3,4],["Sample", "Sample", "Sample", "Sample"],["foo","bar","Hello","0.3"], ["baz", null, "qux"]]
var ws_name = "SheetJS";
var wb = new Workbook(), ws = sheet_from_array_of_arrays(data);
/* add worksheet to workbook */
wb.SheetNames.push(ws_name);
wb.Sheets[ws_name] = ws;
var wbout = XLSX.write(wb, {bookType:'xlsx', bookSST:true, type: 'binary'});
FileSaver.saveAs(new Blob([s2ab(wbout)],{type:"application/octet-stream"}), "sample.xlsx")
}
p.s. кстати если нужно просто файл xlsx -
zipcelx отличное решение