Peek - Xlsx Viewer

Peek is a fast, clean viewer and editor for Excel (.xlsx) spreadsheet files. Every feature is free.

Open any .xlsx file right on your phone and see it exactly as it was designed — cell colors, borders, merged cells, fonts, number formats, and formulas are all preserved. No account, no sign-up.

KEY FEATURES — ALL FREE
• Open Excel (.xlsx) files instantly
• Faithful rendering: cell colors, borders, merged cells, fonts, and number formatting
• Edit cells with undo, resize rows and columns
• Save your edits back to Excel (.xlsx) — original colors, borders, merged cells, charts, and images are kept
• Export to image (PNG) and PDF
• See the actual formula behind any cell (=SUM, =IF, and more), not just the result
• Multiple sheets — switch easily with the bottom tabs
• Pinch to zoom in and out
• Cell search — find any value fast
• Share a spreadsheet straight from the app
• Recent files list — your edits are right there when you come back
• Works fully offline — your files never leave your device
• Clean, distraction-free interface
• Light and dark mode
• Available in English, Korean, Japanese, and Chinese

PRIVACY FIRST
Peek processes your files entirely on your device. Your spreadsheets are never uploaded. The app shows occasional ads (Google AdMob), which may use an advertising ID as described in our privacy policy.

Perfect for quickly checking and fixing spreadsheets on the go — invoices, schedules, reports, forms, budgets, and more.

Note: Peek is an independent app and is not affiliated with, endorsed by, or sponsored by Microsoft. "Excel" is a trademark of Microsoft Corporation and is used here only to describe file compatibility.