upload

src/20201211.js

+require("topsin.excelxs");
+try {
+    var book = new Book;
+    var ok = book.open("test.xlsx");
+    if (!ok) throw "open xlsx failed.";
+    var sheet = book.getSheet(0);
+    var format = book.addFormat();
+    format.setPatternForegroundColor('#FF0000');
+    format.setFillPattern('SOLID');
+    sheet.setCellValue(0, 0, "DIRTY");
+    sheet.setCellFormat(0, 0, format);
+    book.save();
+    book.close();
+} catch(e) {
+    print(e);
+}
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