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Excel & CSV tools

Convert spreadsheets between Excel, CSV, PDF, and image formats without opening Excel — free, in the browser, with your formatting intact.

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All Excel tools by task

Which spreadsheet tool do you need?

Start from the format the other side is asking for:

What you need to doUse this tool
A system needs plain CSV, not a workbookExcel to CSV
A CSV export needs to become a real workbookCSV to Excel
I need a fixed report nobody can alterExcel to PDF
The data I need is trapped in a PDFPDF to Excel
I want the table as an image for a deckExcel to JPG

CSV and Excel are not the same thing

A CSV file is plain text: rows separated by line breaks, values separated by commas. It holds no formulas, no formatting, no multiple sheets, no cell types, and no column widths. An .xlsx is a structured workbook that holds all of those. Converting Excel to CSV therefore discards everything except the values — which is exactly what an import system usually wants, and exactly why it is the wrong format for archiving anything.

Going the other way is where data gets damaged. Because CSV carries no type information, the program opening it has to guess. Excel's guesses are notoriously destructive: leading zeros are stripped so a postcode like 01234 becomes 1234, long account numbers past fifteen digits are rounded into scientific notation, and anything resembling a date is converted — the reason gene names like SEPT1 became September 1 across published genomics papers.

Converting the file properly rather than double-clicking it avoids the guessing. Values are read with their delimiters and encodings respected, so identifiers stay identifiers. If you are handling IDs, reference codes, or anything with meaningful leading zeros, this is the difference between a clean import and silent corruption you find weeks later.

Excel and CSV tools FAQ

Do formulas survive the conversion?

Converting to CSV keeps calculated values but not the formulas behind them, because the format cannot store them. Excel to PDF renders the values as displayed. Keep the original workbook if you need the formulas.

What happens to workbooks with several sheets?

CSV holds exactly one sheet, so a multi-sheet workbook is separated per sheet. PDF and image conversions keep every sheet in one output file, in workbook order.

Will my leading zeros and long ID numbers be preserved?

Yes. Values are read with their original types rather than being re-guessed, so postcodes, account numbers, and reference codes keep their leading zeros and do not turn into scientific notation.

Are semicolon-delimited and UTF-8 CSVs handled?

Yes. Comma and semicolon delimiters are both detected, and UTF-8 encoding is preserved, so accented characters and non-Latin scripts come through intact.

Can PDF to Excel read a scanned table?

Only if the PDF contains real text. A scan is an image of a table, and extracting it requires OCR first — text-based PDFs convert accurately, photographed or scanned ones do not.

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