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Spreadsheet viewer

Excel Viewer

Open XLSX, XLS or CSV online to preview worksheets and rows, search displayed cells, and copy visible spreadsheet data in read-only mode.

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Accepted

XLSX, XLS, CSV, Text

Limit

1 file · up to 10 MB

Result

Spreadsheet → preview

Handling

Auto cleanup after 1h

Usage

Today:

Usage unavailable.

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Select a file to begin Ready to configure and run Uploading securely… Queued for processing… Processing your file… Finished — your result is ready Processing failed — review the message below

Read-only viewer mode

This tool analyzes and previews your file without converting or rewriting content.

📊

Inspect workbook sheets, rows and columns online.

or browse files

Max file size: 10MB

Max files per run: 1

Supported formats: XLSX, XLS, CSV

Upload exactly one spreadsheet (XLSX, XLS, or CSV), up to 10MB. We will inspect it in read-only mode.

Try fictional example files without downloading them first. Then choose Analyze file when ready. Clear selected files to try the example.

Smart file detection

✓ images uploaded successfully

Ready to resize

✓ 1 image uploaded successfully

Ready to process

✓ images uploaded successfully

Ready to process

✓ Resize Image input ready
Resize input preview

Ready to resize

Saved tool settings

Save your current settings and apply them with one click.

Advanced: multi-step processing (optional)

Pipeline Builder

Build a multi-step flow (compress, convert, resize, merge) and run it in one upload.

Saved presets

Sign in to save and reuse pipeline presets.

Read-only mode: metadata and preview only, no conversion output files.

Share the tool with a colleague — never your uploaded file. Public tool links can be opened without an account.

Your files are ready. Download:

Download all (ZIP)

Run completed. Your outputs are ready.

Open the download section below to fetch your result files.

Polling slowed down or failed.

Input summary

PDF compression summary

Original size

Compressed size

Reduced by

Pages

No file-size reduction for this PDF. Very small or already optimized documents can become larger after reprocessing. You can download the result or keep your original file.

The processed video is larger than your original. Compression savings depend on the source codec, duration and resolution. Compare both files before sharing and keep the smaller original when possible.

Success! Your PDF pages were converted successfully.

Download your JPG images now or save them to your workspace.

Success! Your PDFs were merged successfully.

Download your merged PDF now or save it to your workspace.

Success! Your PDF was split successfully.

Download your extracted pages now or save them to your workspace.

Success! Your JPG images were combined into a PDF.

Download your output now or save it to your workspace.

CSV processing summary

Input rows

Output rows

Output files

Rows removed

Output size

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Smart next steps

Based on this run, here are two high-impact follow-up actions.

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How it works

1

Choose an XLSX, XLS, or CSV file

Choose an XLSX, XLS, or CSV file

2

Process the file in read-only viewer mode

Process the file in read-only viewer mode

3

Select worksheet tabs and review up to 30 rows and 15 columns per sheet

Select worksheet tabs and review up to 30 rows and 15 columns per sheet

Try a real example

Open a sample spreadsheet before using your own file

Download our small, fictional sales-and-inventory workbook, upload it above, and choose Analyze file. Switch between the two worksheets, search for a product and copy the displayed rows.

Read-only Excel Viewer showing synthetic Sales 2026 and Inventory worksheets with a search box, displayed rows and Copy displayed rows button
Actual CodeStorms product screenshot with a fictional workbook; no private customer information. Only the visible preview is copied, not the whole file.
Download sample XLSX · 7.3 KB

Read-only preview: up to 8 sheets, 30 rows and 15 columns per sheet. Files are uploaded for temporary server-side processing. This sample contains no customer information.

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🔗 Related tools 3 related tools

About Excel Viewer

Open an Excel file online without installing Microsoft Excel: upload an XLSX, XLS or CSV workbook and inspect its worksheet names, column headers and cell values. Switch between the available preview tabs, search within the visible 30-row preview of a sheet, and copy only the rows currently shown. The viewer is read-only: it does not edit your workbook, evaluate formulas or export the entire spreadsheet. Review the synthetic sample preview below before using your own file.

→ Open an XLSX or XLS file on a device without Microsoft Excel. → Inspect spreadsheet rows, columns, sheet names, and cell values. → Review a CSV or Excel file before converting or cleaning the data.

Related guides and workflows

📦 Supported formats 2 file types

XLSX XLS and CSV spreadsheets

❓ Frequently asked questions 2 answers

The file is uploaded over HTTPS for processing and removed according to the active retention policy.

Yes. The tool runs from a modern web browser and requires no desktop installation.