--- name: gembox-skill description: Coding assistance for GemBox components. Use when users ask about any GemBox component or coding task that can be performed with a GemBox component. This includes GemBox.Spreadsheet (.NET read/write Excel files), GemBox.Document (.NET read/write Word files), GemBox.Pdf (.NET read/write PDF files), GemBox.Presentation (.NET read/write PowerPoint files), GemBox.Email (.NET read/write email files, send/receive emails), GemBox.Imaging (.NET read/write image files), and GemBox.PdfViewer (JavaScript display/print/save PDF files). license: MIT metadata: author: gemboxsoftware.com version: "0.9" ---

CLI tips

• .NET runtime check: dotnet --list-runtimes
• GemBox .NET component version: dotnet list package
• If you need GemBox API details, look them up locally in the XML docs. Example GemBox.Spreadsheet NuGet paths:

- Linux/macOS: ~/.nuget/packages/gembox.spreadsheet/2025.12.105/lib/*/GemBox.Spreadsheet.xml - PowerShell: $env:USERPROFILE\.nuget\packages\gembox.spreadsheet\2025.12.105\lib\*\GemBox.Spreadsheet.xml

• Use ripgrep to search the XML. E.g.:

- Linux/macOS: rg -n "Autofit" ~/.nuget/packages/gembox.spreadsheet/2025.12.105/lib/**/GemBox.Spreadsheet.xml

• If the API is unclear, scan namespaces and remarks/examples in the doc XML before coding. E.g.:

- Linux/macOS: rg -n "namespace GemBox|Drawing|PivotTables" ~/.nuget/packages/gembox.spreadsheet/2025.12.105/lib/**/GemBox.Spreadsheet.xml

Online search

If you don't find relevant docs via CLI, and you have network access, search online:

1. Open a relevant official example page, as examples listed below provide the most information. E.g, if you need custom fonts in GemBox.Document, the base URL is "https://www.gemboxsoftware.com/document/examples/". The specific example that mentions fonts is "fonts/103", so open "https://www.gemboxsoftware.com/document/examples/fonts/103" page.
2. If examples are insufficient, search the official API documentation of a specific component.

E.g. GemBox.Spreadsheet online search filter: "site:https://www.gemboxsoftware.com/spreadsheet/docs"

Validation

Once you are finished, validate the code by compiling the project. If there are errors related to GemBox API usage, modify the code accordingly. Ignore compilation errors that are not related to GemBox or not caused by your edits.

GemBox.Spreadsheet examples URLs

BASE: https://www.gemboxsoftware.com/spreadsheet/examples/ SPREADSHEET EXAMPLES: asp-net-core-create-excel/5601 asp-net-excel-export-gridview/5101 asp-net-excel-viewer/6012 blazor-create-excel/5602 c-sharp-convert-excel-to-image/405 c-sharp-convert-excel-to-pdf/404 c-sharp-create-write-excel-file/402 c-sharp-excel-range/204 c-sharp-export-datatable-dataset-to-excel/501 c-sharp-export-excel-to-datatable/502 c-sharp-microsoft-office-interop-excel-automation/6004 c-sharp-open-read-excel-file/401 c-sharp-read-write-csv/122 c-sharp-vb-net-convert-excel-html/117 c-sharp-vb-net-create-excel-chart-sheet/302 c-sharp-vb-net-create-excel-tables/119 c-sharp-vb-net-excel-chart-formatting/306 c-sharp-vb-net-excel-conditional-formatting/105 c-sharp-vb-net-excel-form-controls/123 c-sharp-vb-net-excel-row-column-autofit/108 c-sharp-vb-net-excel-style-formatting/202 c-sharp-vb-net-import-export-excel-datagridview/5301 c-sharp-vb-net-print-excel/451 c-sharp-vb-net-xls-decryption/707 convert-excel-table-range-vb-net-c-sharp/6011 convert-import-write-json-to-excel-vb-net-c-sharp/6010 convert-xls-xlsx-ods-csv-html-net-c-sharp/6001 create-excel-charts/301 create-excel-file-maui/5802 create-excel-file-xamarin/5801 create-excel-files-c-sharp/6013 create-excel-pdf-on-azure/5901 create-excel-pdf-on-docker-net-core/5902 create-excel-pdf-on-linux-net-core/5701 create-excel-pivot-tables/114 create-read-write-excel-classic-asp/5501 create-read-write-excel-php/5502 create-read-write-excel-python/5503 edit-save-excel-template/403 excel-autofilter/112 excel-calculations-c-sharp-vb-net/6022 excel-cell-comments/208 excel-cell-data-types/201 excel-cell-hyperlinks/207 excel-cell-inline-formatting/203 excel-cell-number-format/205 excel-chart-components/304 excel-charts-guide-c-sharp/6019 excel-data-validation/106 excel-defined-names/214 excel-encryption/701 excel-find-replace-text/109 excel-formulas/206 excel-freeze-split-panes/102 excel-grouping/101 excel-header-footer-formatting/6021 excel-headers-footers/210 excel-images/209 excel-performance-metrics/5401 excel-preservation/801 excel-print-title-area/104 excel-print-view-options/103 excel-properties/107 excel-shapes/211 excel-sheet-copy-delete/111 excel-sheet-protection/704 excel-textboxes/212 excel-workbook-protection/705 excel-wpf/5201 excel-xlsx-digital-signature/706 fixed-columns-width-text/118 fonts/115 free-trial-professional/1001 getting-started/601 merge-excel-cells-c-sharp-vb-net/213 open-read-excel-files-c-sharp/6009 pdf-digital-signature/703 pdf-encryption/702 progress-reporting-and-cancellation/121 protecting-excel-data-c-sharp/6020 right-to-left-text/120 sort-data-excel/113 unit-conversion-excel/116 vba-macros/124 xlsx-write-protection/708

GemBox.Document examples

BASE: https://www.gemboxsoftware.com/document/examples/ DOCUMENT EXAMPLES: asp-net-core-create-word-docx-pdf/5601 asp-net-create-generate-export-pdf-word/5101 auto-hyphenation/109 blazor-create-word/5602 c-sharp-convert-aspx-to-pdf/6002 c-sharp-convert-html-to-pdf/307 c-sharp-convert-pdf-to-docx/308 c-sharp-convert-word-to-from-html/105 c-sharp-convert-word-to-image/306 c-sharp-convert-word-to-pdf/304 c-sharp-convert-word-to-pdf/6007 c-sharp-microsoft-office-interop-word-automation/6005 c-sharp-read-extract-pdf-tables/305 c-sharp-vb-net-create-generate-pdf/6004 c-sharp-vb-net-create-update-word-toc/207 c-sharp-vb-net-create-word-form/701 c-sharp-vb-net-create-write-word-file/302 c-sharp-vb-net-docx-encryption/1102 c-sharp-vb-net-edit-save-word-template/303 c-sharp-vb-net-find-replace-word/405 c-sharp-vb-net-mail-merge-word/901 c-sharp-vb-net-manipulate-content-word/403 c-sharp-vb-net-open-read-word-file/301 c-sharp-vb-net-pdf-digital-signature/1104 c-sharp-vb-net-pdf-encryption/1103 c-sharp-vb-net-print-word/351 c-sharp-vb-net-read-word-form/702 c-sharp-vb-net-update-word-form/703 c-sharp-vb-net-word-performance/5401 cloning/501 combine-word-file-c-sharp-vb-net/502 content-controls/106 create-read-write-word-pdf-classic-asp/5501 create-read-write-word-pdf-php/5502 create-read-write-word-pdf-python/5503 create-table-in-word-csharp/1201 create-word-file-maui/5802 create-word-file-xamarin/5801 create-word-pdf-on-azure-functions-app-service/5901 create-word-pdf-on-docker-net-core/5902 create-word-pdf-on-linux-net-core/5701 customize-mail-merge/904 docx-digital-signature/1106 docx-write-protection/1101 extract-individual-pages/112 find-replace-word-csharp/6003 fonts/103 free-trial-professional/1301 generate-barcodes-qr-codes-csharp-vb-net/217 getting-started/801 html-to-pdf-converter-csharp/6001 iterating/503 load-process-pdf-csharp/6006 mail-merge-clear-options/905 mail-merge-if-fields/902 mail-merge-labels/909 mail-merge-pictures/908 mail-merge-ranges/903 merge-barcodes-qr-codes/907 nested-mail-merge/906 progress-reporting-and-cancellation/108 restrict-editing/1105 right-to-left-text/107 unit-conversion/104 vba-macros/111 word-bookmarks-hyperlinks/204 word-breaks/205 word-character-formatting/601 word-charts/213 word-comments/215 word-editor-asp-net-mvc/5102 word-editor-windows-forms/5301 word-editor-wpf/5203 word-fields/206 word-footnote-endnote/212 word-header-footer/208 word-lists/603 word-merge-cells/1203 word-page-setup/209 word-paragraph-formatting/602 word-pictures/201 word-preservation/1001 word-properties/211 word-shapes/203 word-styles/604 word-table-formatting/1204 word-table-styles/1205 word-textboxes/202 word-track-changes/216 word-view-options/210 word-watermarks/214 word-wpf-xpsdocument-imagesource/5201

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