Spreadsheets
20 tools, including CSV to Excel, Extract Excel formulas, Excel to CSV and Convert formulas to values. All free, with no account and nothing to install.
CSV to ExcelConvert a CSV file (or pasted CSV) into a real .xlsx spreadsheet.Extract Excel formulasList every formula in a workbook with its sheet and cell, to audit or document it. Reads Excel (XLSX, XLSM), OpenDocument (ODS) and Apple Numbers, in any language — a French SI() or a German WENN() comes out as written. XLS and XLSB carry formulas that this reader cannot always surface, and CSV or TSV hold none by design: they store results, never formulas.Excel to CSVConvert an .xlsx or .xls sheet to CSV, pick which sheet.Convert formulas to valuesReplaces every formula by the result Excel last saved with it, so the sheet keeps its numbers but no longer shows how they were obtained — useful before sending a file out. Nothing is recalculated: a workbook saved without cached results comes back empty. Works with Excel (XLSX, XLS, XLSM, XLSB), OpenDocument (ODS), Apple Numbers, CSV and TSV — though CSV and TSV never hold formulas to begin with.Merge Excel filesCombine several workbooks into one, keeping every sheet and renaming on collision.Numbers to XLSXOpen an Apple Numbers file and save it as Excel .xlsx — no Mac required.ODS to XLSXConvert a LibreOffice Calc .ods sheet to Excel .xlsx without installing anything.Remove duplicate rowsDelete rows that repeat an earlier row exactly, keeping the header and the first occurrence. Works with Excel (XLSX, XLS, XLSM, XLSB), OpenDocument (ODS), Apple Numbers, CSV and TSV.Remove empty columnsDrop columns that hold no value in any row — the trailing columns exports leave behind. Works with Excel (XLSX, XLS, XLSM, XLSB), OpenDocument (ODS), Apple Numbers, CSV and TSV.Remove empty rowsStrip every row whose cells are all blank, closing the gaps left by an export. Works with Excel (XLSX, XLS, XLSM, XLSB), OpenDocument (ODS), Apple Numbers, CSV and TSV.Split an Excel fileBreak a workbook into one .xlsx file per sheet, downloaded separately.XLS to XLSXConvert a legacy .xls workbook to the modern .xlsx format, in your browser.XLSB to XLSXTurn a binary .xlsb workbook into a standard .xlsx file any program can open.XLSM to XLSXSave a macro-enabled .xlsm workbook as a plain .xlsx, leaving the macros behind.Excel to HTML tableConvert a sheet into an HTML table you can paste straight into a page.Excel to JSONTurn a spreadsheet into a JSON array of objects, one per row, using the header row as keys.XLSX to ODSConvert an Excel workbook to OpenDocument .ods for LibreOffice Calc.Excel to TSVExport a sheet as tab-separated values, the safe choice when your data contains commas.Excel to XMLExport a sheet as well-formed XML, with the header row naming each element.Excel viewerOpen and read an .xlsx, .xls, .ods or Numbers file without a spreadsheet program.