Calc

LibreOffice Calc

Overview

This public intake copy packages plugins/antigravity-awesome-skills-claude/skills/libreoffice/calc from https://github.com/sickn33/antigravity-awesome-skills into the native Omni Skills editorial shape without hiding its origin.

Use it when the operator needs the upstream workflow, support files, and repository context to stay intact while the public validator and private enhancer continue their normal downstream flow.

This intake keeps the copied upstream files intact and uses the external_source block in metadata.json plus ORIGIN.md as the provenance anchor for review.

LibreOffice Calc

Imported source sections that did not map cleanly to the public headings are still preserved below or in the support files. Notable imported sections: Core Capabilities, Python Libraries, Limitations.

When to Use This Skill

Use this section as the trigger filter. It should make the activation boundary explicit before the operator loads files, runs commands, or opens a pull request.

• Creating new spreadsheets in ODS format
• Converting between ODS, XLSX, CSV, PDF formats
• Automating data processing and analysis
• Creating formulas, charts, and pivot tables
• Batch processing spreadsheet operations
• Use when the request clearly matches the imported source intent: Spreadsheet creation, format conversion (ODS/XLSX/CSV), formulas, data automation with LibreOffice Calc.

Operating Table

Workflow

This workflow is intentionally editorial and operational at the same time. It keeps the imported source useful to the operator while still satisfying the public intake standards that feed the downstream enhancer flow.

1. Creating a New Spreadsheet #### Method 1: Command-Line bash soffice --calc template.ods #### Method 2: Python with UNO python import uno def createspreadsheet(): localctx = uno.getComponentContext() resolver = localctx.ServiceManager.createInstanceWithContext( "com.sun.star.bridge.UnoUrlResolver", localctx ) ctx = resolver.resolve( "uno:socket,host=localhost,port=8100;urp;StarOffice.ComponentContext" ) smgr = ctx.ServiceManager doc = smgr.createInstanceWithContext("com.sun.star.sheet.SpreadsheetDocument", ctx) sheets = doc.getSheets() sheet = sheets.getByIndex(0) cell = sheet.getCellByPosition(0, 0) cell.setString("Hello from LibreOffice Calc!") doc.storeToURL("file:///path/to/spreadsheet.ods", ()) doc.close(True) #### Method 3: Using ezodf python import ezodf doc = ezodf.newdoc('ods', 'spreadsheet.ods') sheet = doc.sheets[0] sheet['A1'].setvalue('Hello') sheet['B1'].setvalue('World') doc.save() ### Converting Spreadsheets bash # ODS to XLSX soffice --headless --convert-to xlsx spreadsheet.ods # ODS to CSV soffice --headless --convert-to csv spreadsheet.ods # ODS to PDF soffice --headless --convert-to pdf spreadsheet.ods # XLSX to ODS soffice --headless --convert-to ods spreadsheet.xlsx # Batch convert for file in *.ods; do soffice --headless --convert-to xlsx "$file" done ### Formula Automation python import uno def createformulaspreadsheet(): localctx = uno.getComponentContext() resolver = localctx.ServiceManager.createInstanceWithContext( "com.sun.star.bridge.UnoUrlResolver", local_ctx ) ctx = resolver.resolve( "uno:socket,host=localhost,port=8100;urp;StarOffice.ComponentContext" ) smgr = ctx.ServiceManager doc = smgr.createInstanceWithContext("com.sun.star.sheet.SpreadsheetDocument", ctx) sheet = doc.getSheets().getByIndex(0) sheet.getCellByPosition(0, 0).setDoubleValue(100) sheet.getCellByPosition(0, 1).setDoubleValue(200) cell = sheet.getCellByPosition(0, 2) cell.setFormula("SUM(A1:A2)") doc.storeToURL("file:///path/to/formulas.ods", ()) doc.close(True)

2. Confirm the user goal, the scope of the imported workflow, and whether this skill is still the right router for the task.
3. Read the overview and provenance files before loading any copied upstream support files.
4. Load only the references, examples, prompts, or scripts that materially change the outcome for the current request.
5. Execute the upstream workflow while keeping provenance and source boundaries explicit in the working notes.
6. Validate the result against the upstream expectations and the evidence you can point to in the copied files.
7. Escalate or hand off to a related skill when the work moves out of this imported workflow's center of gravity.

Imported Workflow Notes

Imported: Workflows

Creating a New Spreadsheet

Method 1: Command-Line

soffice --calc template.ods

Method 2: Python with UNO

import uno

def create_spreadsheet():
    local_ctx = uno.getComponentContext()
    resolver = local_ctx.ServiceManager.createInstanceWithContext(
        "com.sun.star.bridge.UnoUrlResolver", local_ctx
    )
    ctx = resolver.resolve(
        "uno:socket,host=localhost,port=8100;urp;StarOffice.ComponentContext"
    )
    smgr = ctx.ServiceManager
    doc = smgr.createInstanceWithContext("com.sun.star.sheet.SpreadsheetDocument", ctx)
    sheets = doc.getSheets()
    sheet = sheets.getByIndex(0)
    cell = sheet.getCellByPosition(0, 0)
    cell.setString("Hello from LibreOffice Calc!")
    doc.storeToURL("file:///path/to/spreadsheet.ods", ())
    doc.close(True)

Method 3: Using ezodf

import ezodf

doc = ezodf.newdoc('ods', 'spreadsheet.ods')
sheet = doc.sheets[0]
sheet['A1'].set_value('Hello')
sheet['B1'].set_value('World')
doc.save()

Converting Spreadsheets

# ODS to XLSX
soffice --headless --convert-to xlsx spreadsheet.ods

# ODS to CSV
soffice --headless --convert-to csv spreadsheet.ods

# ODS to PDF
soffice --headless --convert-to pdf spreadsheet.ods

# XLSX to ODS
soffice --headless --convert-to ods spreadsheet.xlsx

# Batch convert
for file in *.ods; do
    soffice --headless --convert-to xlsx "$file"
done

Formula Automation

import uno

def create_formula_spreadsheet():
    local_ctx = uno.getComponentContext()
    resolver = local_ctx.ServiceManager.createInstanceWithContext(
        "com.sun.star.bridge.UnoUrlResolver", local_ctx
    )
    ctx = resolver.resolve(
        "uno:socket,host=localhost,port=8100;urp;StarOffice.ComponentContext"
    )
    smgr = ctx.ServiceManager
    doc = smgr.createInstanceWithContext("com.sun.star.sheet.SpreadsheetDocument", ctx)
    sheet = doc.getSheets().getByIndex(0)

    sheet.getCellByPosition(0, 0).setDoubleValue(100)
    sheet.getCellByPosition(0, 1).setDoubleValue(200)

    cell = sheet.getCellByPosition(0, 2)
    cell.setFormula("SUM(A1:A2)")

    doc.storeToURL("file:///path/to/formulas.ods", ())
    doc.close(True)

Imported: Overview

LibreOffice Calc skill for creating, editing, converting, and automating spreadsheet workflows using the native ODS (OpenDocument Spreadsheet) format.

Imported: Core Capabilities

1. Spreadsheet Creation

• Create new ODS spreadsheets from scratch
• Generate spreadsheets from templates
• Create data entry forms
• Build dashboards and reports

2. Format Conversion

• ODS to other formats: XLSX, CSV, PDF, HTML
• Other formats to ODS: XLSX, XLS, CSV, DBF
• Batch conversion of multiple files

3. Data Automation

• Formula automation and calculations
• Data import from CSV, database, APIs
• Data export to various formats
• Batch data processing

4. Data Analysis

• Pivot tables and data summarization
• Statistical functions and analysis
• Data validation and filtering
• Conditional formatting

5. Integration

• Command-line automation via soffice
• Python scripting with UNO
• Database connectivity

Examples

Example 1: Ask for the upstream workflow directly

Use @calc to handle <task>. Start from the copied upstream workflow, load only the files that change the outcome, and keep provenance visible in the answer.

Explanation: This is the safest starting point when the operator needs the imported workflow, but not the entire repository.

Example 2: Ask for a provenance-grounded review

Review @calc against metadata.json and ORIGIN.md, then explain which copied upstream files you would load first and why.

Explanation: Use this before review or troubleshooting when you need a precise, auditable explanation of origin and file selection.

Example 3: Narrow the copied support files before execution

Use @calc for <task>. Load only the copied references, examples, or scripts that change the outcome, and name the files explicitly before proceeding.

Explanation: This keeps the skill aligned with progressive disclosure instead of loading the whole copied package by default.

Example 4: Build a reviewer packet

Review @calc using the copied upstream files plus provenance, then summarize any gaps before merge.

Explanation: This is useful when the PR is waiting for human review and you want a repeatable audit packet.

Imported Usage Notes

Imported: Command-Line Reference

soffice --headless
soffice --headless --convert-to <format> <file>
soffice --calc  # Calc

Best Practices

Treat the generated public skill as a reviewable packaging layer around the upstream repository. The goal is to keep provenance explicit and load only the copied source material that materially improves execution.

• Use named ranges for clarity
• Document complex formulas
• Use data validation for input control
• Create templates for recurring reports
• Store ODS source files in version control
• Test conversions thoroughly
• Use CSV for data exchange

Imported Operating Notes

Imported: Best Practices

1. Use named ranges for clarity
2. Document complex formulas
3. Use data validation for input control
4. Create templates for recurring reports
5. Store ODS source files in version control
6. Test conversions thoroughly
7. Use CSV for data exchange
8. Handle conversion failures gracefully

Troubleshooting

Problem: The operator skipped the imported context and answered too generically

Symptoms: The result ignores the upstream workflow in plugins/antigravity-awesome-skills-claude/skills/libreoffice/calc, fails to mention provenance, or does not use any copied source files at all. Solution: Re-open metadata.json, ORIGIN.md, and the most relevant copied upstream files. Check the external_source block first, then restate the provenance before continuing.

Problem: The imported workflow feels incomplete during review

Symptoms: Reviewers can see the generated SKILL.md, but they cannot quickly tell which references, examples, or scripts matter for the current task. Solution: Point at the exact copied references, examples, scripts, or assets that justify the path you took. If the gap is still real, record it in the PR instead of hiding it.

Problem: The task drifted into a different specialization

Symptoms: The imported skill starts in the right place, but the work turns into debugging, architecture, design, security, or release orchestration that a native skill handles better. Solution: Use the related skills section to hand off deliberately. Keep the imported provenance visible so the next skill inherits the right context instead of starting blind.

Imported Troubleshooting Notes

Imported: Troubleshooting

Cannot open socket

killall soffice.bin
soffice --headless --accept="socket,host=localhost,port=8100;urp;"

Related Skills

• @00-andruia-consultant - Use when the work is better handled by that native specialization after this imported skill establishes context.
• @00-andruia-consultant-v2 - Use when the work is better handled by that native specialization after this imported skill establishes context.
• @10-andruia-skill-smith - Use when the work is better handled by that native specialization after this imported skill establishes context.
• @10-andruia-skill-smith-v2 - Use when the work is better handled by that native specialization after this imported skill establishes context.

Additional Resources

Use this support matrix and the linked files below as the operator packet for this imported skill. They should reflect real copied source material, not generic scaffolding.

Imported Reference Notes

Imported: Format Conversion Reference

Supported Input Formats

• ODS (native), XLSX, XLS, CSV, DBF, HTML

Supported Output Formats

• ODS, XLSX, XLS, CSV, PDF, HTML

Imported: Resources

• LibreOffice Calc Guide
• UNO API Reference
• ezodf Documentation

Imported: Python Libraries

pip install ezodf     # ODS handling
pip install odfpy     # ODF manipulation
pip install pandas    # Data analysis

Imported: Limitations

• Use this skill only when the task clearly matches the scope described above.
• Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
• Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.