json-as-xlsx
This is a tool that helps to build an excel from a json and it depends only on xlsx library
You can see a live example of it working on any of this sites (there are many just in case):
Usage
import xlsx from "json-as-xlsx"
// or require
let xlsx = require("json-as-xlsx")
let data = [
{
sheet: "Adults",
columns: [
{ label: "User", value: "user" }, // Top level data
{ label: "Age", value: (row) => row.age + " years" }, // Custom format
{ label: "Phone", value: (row) => (row.more ? row.more.phone || "" : "") }, // Run functions
],
content: [
{ user: "Andrea", age: 20, more: { phone: "11111111" } },
{ user: "Luis", age: 21, more: { phone: "12345678" } },
],
},
{
sheet: "Children",
columns: [
{ label: "User", value: "user" }, // Top level data
{ label: "Age", value: "age", format: '# "years"' }, // Column format
{ label: "Phone", value: "more.phone", format: "(###) ###-####" }, // Deep props and column format
],
content: [
{ user: "Manuel", age: 16, more: { phone: 9999999900 } },
{ user: "Ana", age: 17, more: { phone: 8765432135 } },
],
},
]
let settings = {
fileName: "MySpreadsheet", // Name of the resulting spreadsheet
extraLength: 3, // A bigger number means that columns will be wider
writeMode: "writeFile", // The available parameters are 'WriteFile' and 'write'. This setting is optional. Useful in such cases https://docs.sheetjs.com/docs/solutions/output#example-remote-file
writeOptions: {}, // Style options from https://docs.sheetjs.com/docs/api/write-options
RTL: true, // Display the columns from right-to-left (the default value is false)
}
xlsx(data, settings) // Will download the excel fileIf you want to trigger something after the file is downloaded, you can use the callback parameter:
let callback = function (sheet) {
console.log("Download complete:", sheet)
}
xlsx(data, settings, callback) // Will download the excel fileColumn formatting
Note: Cell formatting is type based, i.e. the format type and value type must match.
If you want to use a Date format, the value must be of type Date; if you want a number format, the value must be a Number.
Column formatting can be provided in the column object, i.e.
columns: [{ label: "Income", value: "income", format: "β¬#,##0.00" }]- A list of SheetJS format examples can be found here: SSF library
- ECMA-376 number formatting specification: Number formats
Examples
// Number formats
"$0.00" // Basic
"\Β£#,##0.00" // Pound
"0%" // Percentage
'#.# "ft"' // Number and text
// Date formats
"d-mmm-yy" // 12-Mar-22
"ddd" // (eg. Sat)
"dddd" // (eg. Saturday)
"h:mm AM/PM" // 1:10 PMExamples
This are files used for development, please change imports from ../../src/index to json-as-xlsx