From 8b60ceb39c2b689afdc090f47403f54373fef491 Mon Sep 17 00:00:00 2001
From: Skylar Ittner <skylar@netsyms.com>
Date: Thu, 5 Feb 2026 01:10:10 -0700
Subject: [PATCH] Add bold cell formatting option

---
 scripts/createOdsFile.js | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/scripts/createOdsFile.js b/scripts/createOdsFile.js
index 9a014df..ae3e1cb 100644
--- a/scripts/createOdsFile.js
+++ b/scripts/createOdsFile.js
@@ -6,11 +6,15 @@ import {serializeToString, createDocument} from './DOMUtils.js'
 /** @import {SheetCellRawContent, SheetName, SheetRawContent} from './types.js' */
 
 const stylesXml = `<?xml version="1.0" encoding="UTF-8"?>
-<office:document-styles 
+<office:document-styles
   xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0"
   xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0"
   office:version="1.2">
-  <office:styles/>
+  <office:styles>
+    <style:style style:name="boldcell" style:family="table-cell">
+      <style:text-properties fo:font-weight="bold"/>
+    </style:style>
+  </office:styles>
   <office:automatic-styles/>
   <office:master-styles/>
 </office:document-styles>`;
@@ -31,7 +35,7 @@ export async function createOdsFile(sheetsData) {
     // Create a new zip writer
     const zipWriter = new ZipWriter(new BlobWriter('application/vnd.oasis.opendocument.spreadsheet'));
 
-    // The “mimetype” file shall be the first file of the zip file. 
+    // The “mimetype” file shall be the first file of the zip file.
     // It shall not be compressed, and it shall not use an 'extra field' in its header.
     // https://docs.oasis-open.org/office/OpenDocument/v1.3/os/part2-packages/OpenDocument-v1.3-os-part2-packages.html#__RefHeading__752809_826425813
     zipWriter.add(
@@ -60,7 +64,7 @@ export async function createOdsFile(sheetsData) {
 
 /**
  * Generate the content.xml file with spreadsheet data
- * @param {Map<SheetName, SheetRawContent>} sheetsData 
+ * @param {Map<SheetName, SheetRawContent>} sheetsData
  * @returns {string}
  */
 function generateContentFileXMLString(sheetsData) {
@@ -101,6 +105,10 @@ function generateContentFileXMLString(sheetsData) {
                 const cellType = convertCellType(cell.type);
                 cellNode.setAttribute('office:value-type', cellType);
 
+                if (cell.style && cell.style == "bold") {
+                    cellNode.setAttribute('table:style-name', "boldcell");
+                }
+
                 // Add value attribute based on type
                 if (cell.value !== null && cell.value !== undefined) {
                     switch (cellType) {
@@ -141,7 +149,7 @@ function generateContentFileXMLString(sheetsData) {
 
 /**
  * Convert cell type to OpenDocument format type
- * @param {SheetCellRawContent['type']} type 
+ * @param {SheetCellRawContent['type']} type
  * @returns {SheetCellRawContent['type']}
  */
 function convertCellType(type) {