Why convert XLSX to JSON?
JSON is the standard format for web APIs and JavaScript applications, so feeding spreadsheet data into a web service or frontend app usually requires a JSON file. Developers also use it to load tabular data into databases or configuration systems. See .JSON for a full format overview.
How to convert XLSX to JSON
Command line - pandas CLI
Requires pandas and openpyxl; run python -c "import pandas as pd; pd.read_excel('data.xlsx').to_json('out.json', orient='records')".
Google Sheets + Apps Script FREE
Open your .xlsx in Google Sheets, then use Extensions > Apps Script to run a script that exports the active sheet as JSON.
About these formats
.XLSX
Microsoft Excel Open XML Workbook
An XLSX file is a Microsoft Excel spreadsheet saved in the Open XML format, introduced with Excel 2007 as the replacement for the older binary XLS format. You can open it without buying…
Open .XLSX details →
.JSON
JavaScript Object Notation file
A JSON file is a plain-text data file in JavaScript Object Notation format, used by web APIs, app configurations, and data exports. Any text editor opens it - Notepad on Windows, TextEdit…
Open .JSON details →Quality & what to watch
- Formulas are not preserved - only the last-calculated cell value appears in the JSON output.
- Only the first sheet is exported by default; multi-sheet workbooks need explicit handling in code.
- Dates, cell formatting, charts, and pivot tables are not transferred to JSON.
Frequently asked questions
Does the JSON include all sheets in a workbook?
sheet_name=None to read all sheets and export them as a JSON object keyed by sheet name.Are formulas preserved in the JSON output?
.xlsx XML directly.What does the JSON structure look like?
records orientation, each row becomes a JSON object and the full file is an array: [{"Name":"Alice","Age":30},...]. Column headers become the object keys.
