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openspec/changes/add-office-document-support/specs/file-processing/spec.md

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+# File Processing Specification Delta
+
+## ADDED Requirements
+
+### Requirement: Office Document Support
+
+The system SHALL support processing of Microsoft Office document formats including Word documents (.doc, .docx) and PowerPoint presentations (.ppt, .pptx).
+
+#### Scenario: Upload and Process Word Document
+Given a user has a Word document containing text and tables
+When the user uploads the `.docx` file
+Then the system converts it to PDF format
+And extracts all text using OCR
+And preserves table structure in the output
+
+#### Scenario: Upload and Process PowerPoint
+Given a user has a PowerPoint presentation with multiple slides
+When the user uploads the `.pptx` file
+Then the system converts each slide to an image
+And performs OCR on each slide
+And maintains slide order in the results
+
+### Requirement: Document Conversion Pipeline
+
+The system SHALL implement a multi-stage conversion pipeline for Office documents using LibreOffice or equivalent tools.
+
+#### Scenario: Conversion Error Handling
+Given an Office document with unsupported features
+When the conversion process encounters an error
+Then the system logs the specific error details
+And returns a user-friendly error message
+And marks the file as failed with reason
+
+## MODIFIED Requirements
+
+### Requirement: File Validation
+
+The file validation module SHALL accept Office document formats in addition to existing image and PDF formats, including .doc, .docx, .ppt, and .pptx extensions.
+
+#### Scenario: Validate Office File Upload
+Given a user attempts to upload a file
+When the file extension is `.docx` or `.pptx`
+Then the system accepts the file for processing
+And validates the MIME type matches the extension
+
+### Requirement: JWT Token Validity
+
+The JWT token validity period SHALL be extended from 30 minutes to 1440 minutes (24 hours) to improve user experience.
+
+#### Scenario: Extended Token Usage
+Given a user authenticates successfully
+When they receive a JWT token
+Then the token remains valid for 24 hours
+And allows continuous API access without re-authentication