FREE LOCAL FILE TOOLS
XLSX Viewer
Open local XLSX spreadsheets as read-only tables. Switch worksheets, inspect cached formula values and export the current preview page without uploading files.
XLSX stores spreadsheet worksheets, shared strings and cell values in an XML ZIP package. This viewer presents a bounded range of visible worksheets as searchable tables, without Excel or server processing.
Drop a file here
Data, documents, ebooks, images, maps or 3D models.
Your files stay on your device.
How to use the XLSX Viewer
Choose a .xlsx file and use Worksheet to switch sheets. Columns use Excel letters and the first row remains data. Search, sort and filter the preview, or export its current page as CSV. Formula results appear only when the workbook includes a cached value.
What the XLSX Viewer supports
Switch visible worksheets; search, filter and sort bounded cell tables. Read cached formula values and export the current table page as CSV.
File limits and compatibility
50 MiB input; first 10 visible worksheets, first 10,000 rows and 100 columns each. 100 MiB archive expansion, 20 MiB per entry, 5,000 entries. No editing, recalculation, formatting, charts, images or macros. Recognized dates are shown in UTC; numeric precision is limited. Hidden rows and columns in visible sheets may be shown.
Expanded content can reach browser limits before the input limit. If opening fails, try a smaller supported file. No cloud fallback is used. This viewer is free and requires no account.
XLSX Viewer FAQ
Does XLSX preview calculate formulas?
No. It shows cached formula results if the workbook contains them. Missing caches are marked [No cached value]. Open and recalculate the workbook in a spreadsheet application to refresh those values.
How much of a workbook can I see?
The preview includes the first 10 visible worksheets and cells within the first 10,000 rows and 100 columns per sheet. Hidden sheets are omitted. Hidden rows and columns in visible sheets may be shown. Search and CSV export cover only the preview.
Are formatting, dates and charts preserved?
No spreadsheet layout fidelity is promised. Recognized dates are shown in UTC, numbers have limited precision, merged cells are not reconstructed, and charts and images are omitted. No editing, macros, encrypted workbooks, XLS or XLSB are supported.
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