Open & View .XLS, .XLSX & OpenOffice .ODS Files Online
No Microsoft Excel license required. Click Import File below to inspect every tab inside legacy .xls, .xlsx, or .ods spreadsheets locally, search rows, or save as CSV and modern XLSX.
Drop XLSX, CSV, TSV, Markdown (.md), or JSON here
Runs locally inside browser memory. Multi-sheet workbooks open into tabs automatically.
Combine Two or More Columns
Merge 2+ columns cleanly without writing formulas.
Split Column by Delimiter
Remove Duplicate Rows
Find & Replace
Sort Rows
Filter or Delete Matching Rows
Fill, Prefix / Suffix & Extract Column
Merge Multiple Files / VLOOKUP Join Sheets
Append rows from multiple files/tabs or join two sheets by a key column.
Option A: Stack / Append All Open Sheet Tabs
Option B: VLOOKUP / Left-Join Two Sheets by Key
Format Preview & Export Converter
Column Profiler & Quick Summary
| Col | Header | Filled | Blank | Unique | Dupes | Min / Max / Avg |
|---|
Paste CSV, TSV, Markdown Table, JSON, or HTML
Confirm Action
Upgrade Legacy .XLS Workbooks Safely
Many government portals, ERP tools, and older CRM systems still export binary Excel 97-2003 .xls files that trigger security warnings in modern apps. Open them cleanly here, inspect all sheet tabs, and re-export as standard .xlsx, .csv, or .tsv.
OpenOffice & LibreOffice (.ODS) Compatibility
Received an .ods file on Windows or Mac without LibreOffice installed? View all columns immediately, run Column Stats to check blanks and duplicates, or convert straight to Microsoft Excel.
Frequently Asked Questions
Can I open old Microsoft Excel 97-2003 (.xls) files here without Office installed?
Yes. SheetCombine reads legacy binary .xls workbooks, modern .xlsx workbooks, and LibreOffice/OpenOffice .ods files straight inside your browser memory using client-side SheetJS parsing.
Does this viewer upload my .xls or .ods spreadsheets to a remote server?
Never. The file stays strictly inside your local browser tab, making it safe for payroll sheets, customer CRM exports, invoices, and tax tables.
Can I convert an old .xls file into modern .xlsx, .csv, or .tsv after viewing it?
Yes. Click Import File (or drag-and-drop your .xls file), view all worksheet tabs at the bottom, and click Export Format to download a modern styled .xlsx workbook, clean .csv, .tsv, .json, or Markdown table.
