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Agent skill
Office Remediation Patterns
Office document OOXML manipulation patterns for accessibility remediation. Covers python-docx, openpyxl, python-pptx API references, PowerShell COM automation snippets, and direct OOXML XML manipulation for fixing accessibility issues in Word, Excel, and PowerPoint files.
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npx add-skill https://github.com/Community-Access/accessibility-agents/tree/main/.gemini/extensions/a11y-agents/skills/office-remediation
SKILL.md
Office Remediation Patterns
API reference and code patterns for programmatically fixing accessibility issues in Microsoft Office documents.
python-docx Patterns (Word .docx)
| Operation | Code |
|---|---|
| Set document title | doc.core_properties.title = "Title" |
| Set document language | Set <w:lang w:val="en-US"/> on <w:rPr> via lxml |
| Fix table headers | row.cells[0]._tc → set <w:tblHeader/> on first row <w:trPr> |
| Add alt text to images | Set descr attribute on <wp:docPr> via lxml |
| Fix heading levels | Reassign paragraph.style to correct Heading N |
| Set list structure | Apply List Bullet / List Number styles |
openpyxl Patterns (Excel .xlsx)
| Operation | Code |
|---|---|
| Set workbook title | wb.properties.title = "Title" |
| Set print titles | ws.print_title_rows = '1:1' for header row repeat |
| Rename generic sheets | ws.title = "Descriptive Name" |
| Detect merged cells | ws.merged_cells.ranges — flag width > 1 |
python-pptx Patterns (PowerPoint .pptx)
| Operation | Code |
|---|---|
| Set presentation title | prs.core_properties.title = "Title" |
| Add slide titles | Add PP_PLACEHOLDER.TITLE placeholder with text |
| Add alt text to shapes | shape._element.set(qn('p:nvSpPr/p:cNvPr'), ...) → set descr |
| Fix reading order | Reorder <p:spTree> children by visual position |
| Add table headers | Set first row cells as header via <a:tblPr firstRow="1"> |
PowerShell COM Automation
# Word
$word = New-Object -ComObject Word.Application
$doc = $word.Documents.Open("C:\path\file.docx")
$doc.BuiltInDocumentProperties("Title").Value = "Title"
$doc.Save(); $doc.Close(); $word.Quit()
# Excel
$excel = New-Object -ComObject Excel.Application
$wb = $excel.Workbooks.Open("C:\path\file.xlsx")
$wb.BuiltInDocumentProperties("Title").Value = "Title"
$wb.Save(); $wb.Close(); $excel.Quit()
# PowerPoint
$ppt = New-Object -ComObject PowerPoint.Application
$prs = $ppt.Presentations.Open("C:\path\file.pptx")
$prs.BuiltInDocumentProperties("Title").Value = "Title"
$prs.Save(); $prs.Close(); $ppt.Quit()
Key OOXML Paths
| Format | ZIP Path | XML Element |
|---|---|---|
| DOCX | docProps/core.xml |
<dc:title> |
| DOCX | word/document.xml |
<w:lang>, <w:tblHeader/> |
| XLSX | docProps/core.xml |
<dc:title> |
| XLSX | xl/workbook.xml |
<sheet name=""> |
| PPTX | docProps/core.xml |
<dc:title> |
| PPTX | ppt/slides/slideN.xml |
<p:spTree> ordering |
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