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File Recovery Tool

Repair Corrupted Office & PDF Files OnlineFree, Instant Recovery

Easily recover and fix damaged Word, Excel, PowerPoint, and PDF files that refuse to open. 100% free, highly secure, and no sign-up required.

DOCX / DOC XLSX / XLS PPTX / PPT PDF
Drop your corrupted file here
or click to browse — we'll try to recover it
DOCXXLSXPPTX DOCXLSPPT PDFMax 50MB
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Analyzing file structure... 0%
Repair Log
File repaired successfully!
Download Repaired File
Could not fully repair this file

Deep Structure Scan

Scans ZIP structure, XML content, relationships and content types for corruption.

Auto Recovery

Rebuilds broken XML, restores missing required files and fixes relationship errors.

Safe & Private

File is processed securely and deleted automatically within 10 minutes.

How to Repair a Corrupted File Online – 3 Steps, Free & Instant

1

Upload Corrupted File

Upload your corrupted DOCX, XLSX, PPTX or PDF. We support files up to 50MB.

2

Auto Diagnosis & Repair

We scan ZIP structure, XML validity, relationships and required files to identify all issues.

3

Download Repaired File

Download the repaired file with a full repair log showing exactly what was fixed.

Frequently Asked Questions

What types of corruption can be repaired?
We can fix: invalid ZIP structure, malformed XML content, broken relationship files (.rels), missing [Content_Types].xml, invalid namespace declarations, broken font/image references, and truncated XML tags. For binary DOC/XLS/PPT files we use LibreOffice recovery mode.
Will all my content be recovered?
It depends on the severity of corruption. Minor corruption (broken XML, missing rels) is usually fully recoverable. Severe corruption (physically damaged storage, heavily truncated files) may result in partial recovery — text content is prioritized over formatting and images.
Why does my file show "Cannot be repaired"?
If the file is severely damaged (empty, completely invalid ZIP, or the core content is missing), automatic repair is not possible. In this case we provide alternative recovery suggestions such as checking your Recycle Bin, using Windows Previous Versions, or trying a dedicated file recovery tool.
Is my file safe and private during the repair process?
Yes. Your file is uploaded over HTTPS and processed on our secure server. It is automatically deleted within 10 minutes. We never read, store or share the content of your documents.
Is this tool free? Do I need to sign up or install anything?
Completely free — no account, no sign-up, no registration, and no software installation required. Everything runs directly in your browser.
What file formats are supported for repair?
We support DOCX, XLSX, PPTX (modern Office formats), DOC, XLS, PPT (older binary formats), PDF, and OpenDocument formats (ODT, ODS, ODP). Maximum file size is 50MB.
Why does Excel say "Found unreadable content"?
This error usually indicates damaged XML data, broken formulas, or corrupted workbook relationships inside the XLSX file structure.
Can I repair a PowerPoint presentation that won't open?
Yes. Many PPTX files can be repaired by rebuilding damaged XML files, restoring relationships, and fixing presentation metadata.
Can a corrupted Office file be recovered after a system crash?
In many cases yes. File corruption caused by unexpected shutdowns or software crashes can often be repaired if the core document content still exists.
What should I do if the repaired file still does not open?
If repair is unsuccessful, try restoring from backups, Windows Previous Versions, cloud storage history, or professional data recovery software.
Can I repair a corrupted PDF file online?
Yes. The tool can repair many damaged PDF files by rebuilding document structure and recovering accessible content whenever possible.
What causes Office documents to become corrupted?
Common causes include power outages, software crashes, failed file transfers, malware infections, storage device errors, and interrupted save operations.
Can I recover data from a damaged DOCX file?
In many cases yes. Text, tables, images, and document structure can often be recovered if the core content remains intact.
Do repaired files contain watermarks?
No. Downloaded repaired files do not contain any watermarks or branding added by the repair process.

The How to Repair Corrupted Word, Excel, PowerPoint and PDF Files Online for Free

How to Fix Word and Excel Files That Cannot Be Opened

Encountering an error message like "The file is corrupt and cannot be opened" can be a nightmare, especially when dealing with critical reports or spreadsheets. If you are wondering how to repair a corrupted DOCX or XLSX file, ToolTiny provides an instant lifeline. Our advanced recovery tool dives deep into the internal XML structure of your Microsoft Office files to automatically detect and repair broken tags, invalid namespaces, and missing document relationships.

Recover Data from Damaged PDFs and PowerPoint

File corruption often happens during unexpected power outages, incomplete downloads, or sudden system crashes. Fortunately, our free online file repair tool supports a wide range of formats including PDF, Word, Excel, and PowerPoint (PPTX). We focus on maximizing data recovery, prioritizing your text, tables, and core content so you can get your work back on track without needing to purchase expensive desktop recovery software.

100% Free, No Sign-Up, No Installation — Repair Directly in Browser

Dealing with sensitive company data? Security is our top priority. ToolTiny's document repair service is 100% free and requires no sign-up. Every file you upload is processed through a secure, encrypted HTTPS connection. Once the recovery process is complete, both your original corrupted file and the repaired output are permanently deleted from our servers within 10 minutes. Fix your files safely, directly in your web browser.

File Is Corrupt and Cannot Be Opened – What Does It Mean?

This error usually indicates that the document structure has been damaged. Missing XML files, broken relationships, invalid content types, or interrupted save operations can all cause Microsoft Office applications to reject the file. Online repair tools attempt to rebuild these damaged components and restore access to the document.

Common Office File Corruption Errors and How to Fix Them

Corrupted Office documents often display error messages such as "The file is corrupt and cannot be opened", "Excel found unreadable content", or "PowerPoint cannot open this presentation". These errors are commonly caused by interrupted saves, damaged storage devices, incomplete downloads, or software crashes.

The Repair Office File tool automatically scans document structure, XML content, relationships, and embedded resources to recover damaged files whenever possible.

What Causes Word, Excel and PowerPoint Files to Become Corrupted?

Office file corruption can occur for many reasons including power failures, hard drive errors, USB device removal during file transfers, malware infections, incomplete downloads, and software crashes.

Modern Office documents are ZIP-based containers that store XML data and embedded resources. Damage to any of these components may prevent the file from opening correctly.

Using an online repair tool can often restore document accessibility without requiring advanced technical knowledge.

Supported File Types for Online Repair

This repair tool supports Microsoft Word (DOCX, DOC), Excel (XLSX, XLS), PowerPoint (PPTX, PPT), PDF, and OpenDocument formats including ODT, ODS, and ODP.

Whether your file was damaged by a software crash, unexpected shutdown, failed transfer, or storage corruption, the tool attempts to rebuild document structure and recover accessible content.

Is It Safe to Upload Corrupted Files Online?

Security and privacy are critical when recovering business documents. All uploaded files are transferred through encrypted HTTPS connections and processed on secure servers.

Original and repaired files are automatically deleted after processing. No registration is required and document contents are never shared with third parties.

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