InTab

CSV ↔ Excel Converter

Convert CSV to Excel (.xlsx) and Excel sheets to CSV or JSON, with a preview.

PDF & Files: Make PDFs from HTML, Markdown and Word; merge, split and convert. It runs in your browser, so nothing you enter is uploaded.

What it does

The CSV ↔ Excel Converter converts CSV to Excel (.xlsx) and Excel sheets to CSV or JSON, with a preview of the data first. It also reads .xls and .ods files, and handles commas, semicolons and tabs.

How to use it

CSV to Excel

  1. Open a CSV file, or paste CSV / TSV text and click Load text.
  2. Leave the delimiter on Auto, or choose comma, semicolon or Tab.
  3. Check the preview and download Excel .xlsx.

Excel to CSV or JSON

  1. Open an .xlsx, .xls or .ods file and choose the sheet.
  2. Download CSV or JSON.

Example

name;city;orders
Ada;London;12
Linus;Helsinki;7

is detected as semicolon-separated and becomes a three-column sheet.

Good to know

  • Many European versions of Excel save "CSV" with semicolons, because the comma is the decimal separator. Auto detects this.
  • CSV holds only values: formulas, formatting and multiple sheets are lost when converting to CSV.
  • Leading zeros, as in phone numbers or ZIP codes, can disappear when Excel opens a CSV. Opening the converted .xlsx keeps the values as they were read.

FAQ

My CSV shows strange characters in Excel. Why? The file is probably UTF-8 but Excel guessed another encoding. Converting it to .xlsx here avoids the problem.

Can I convert JSON to Excel? Convert JSON to CSV with the Data Format Converter first, then convert that CSV here.

More PDF & Files tools

  • PDF Tools: Merge, split, rotate and reorder PDFs, or turn images into a PDF.
  • HTML to PDF: Turn HTML with its CSS into a PDF: choose page size, orientation and margins.
  • Markdown to PDF: Write Markdown and export a styled PDF with colour themes and highlighted code.
  • Word to PDF: Convert .docx Word documents to PDF in your browser, keeping headings, lists, tables and images.
  • Markdown to PowerPoint: Write slides in Markdown and download a PowerPoint deck with themes, tables, code and speaker notes.
  • PDF Viewer: Read PDFs in your browser: zoom, rotate, jump to a page, select text and print.
  • Word Viewer: Open .docx files without Word, with a headings outline, zoom and print.
  • Excel Viewer: Open .xlsx, .xls, .ods and .csv spreadsheets with sheet tabs, formulas and search.
  • PowerPoint Viewer: Open .pptx presentations with slide thumbnails, speaker notes and a full-screen show.
  • PDF to Word: Get the text of a PDF into an editable Word .docx file, with headings and paragraphs.