如何通过Office JS实现浏览器端Excel任务窗格自动打开？

我按官方步骤配置后，仅Word能在浏览器打开文档时自动弹出任务窗格，Excel遇到以下问题：

• 将XML清单中的<Workbook>元素改为<Document>后，任务窗格仅第一次打开工作簿时自动显示，后续新建或打开其他工作簿均不再弹出。
• 保留<Workbook>元素时，任务窗格完全不会自动打开。

配置代码参考 #

JavaScript代码 #

Office.context.document.settings.set("Office.AutoShowTaskpaneWithDocument", true);
Office.context.document.settings.saveAsync();

XML清单代码 #

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<OfficeApp xmlns="http://schemas.microsoft.com/office/appforoffice/1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:bt="http://schemas.microsoft.com/office/officeappbasictypes/1.0" xmlns:ov="http://schemas.microsoft.com/office/taskpaneappversionoverrides" xsi:type="TaskPaneApp">
  <Id>7096d4ff-2998-4321-85c7-bdb943da5ee7</Id>
  <Version>1.0.0.0</Version>
  <ProviderName>Contoso</ProviderName>
  <DefaultLocale>en-US</DefaultLocale>
  <DisplayName DefaultValue="temp2"/>
  <Description DefaultValue="Write your own Excel functions in JavaScript."/>
  <IconUrl DefaultValue="https://localhost:3000/assets/veriket_white_32.png"/>
  <HighResolutionIconUrl DefaultValue="https://localhost:3000/assets/veriket_white_64.png"/>
  <SupportUrl DefaultValue="https://www.contoso.com/help"/>
  <AppDomains>
    <AppDomain>https://www.contoso.com</AppDomain>
  </AppDomains>
  <Hosts>
    <Host Name="Workbook"/>
  </Hosts>
  <Requirements>
    <Sets DefaultMinVersion="1.1">
      <Set Name="SharedRuntime" MinVersion="1.1"/>
    </Sets>
  </Requirements>
  <DefaultSettings>
    <SourceLocation DefaultValue="https://localhost:3000/taskpane.html"/>
  </DefaultSettings>
  <Permissions>ReadWriteDocument</Permissions>
  <VersionOverrides xmlns="http://schemas.microsoft.com/office/taskpaneappversionoverrides" xsi:type="VersionOverridesV1_1">
    <Hosts>
      <Host xsi:type="Workbook">
        <Runtimes>
          <Runtime resid="Taskpane.Url" lifetime="long"/>
        </Runtimes>
        <DesktopFormFactor>
          <!-- <GetStarted>
            <Title resid="GetStarted.Title"/>
            <Description resid="GetStarted.Description"/>
            <LearnMoreUrl resid="GetStarted.LearnMoreUrl"/>
          </GetStarted> -->
          <FunctionFile resid="Taskpane.Url"/>
          <ExtensionPoint xsi:type="PrimaryCommandSurface">
            <OfficeTab id="TabHome">
              <Group id="CommandsGroup">
                <Label resid="CommandsGroup.Label"/>
                <Icon>
                  <bt:Image size="16" resid="Icon.16x16"/>
                  <bt:Image size="32" resid="Icon.32x32"/>
                  <bt:Image size="80" resid="Icon.80x80"/>
                </Icon>
                <Control xsi:type="Button" id="TaskpaneButton">
                  <Label resid="TaskpaneButton.Label"/>
                  <Supertip>
                    <Title resid="TaskpaneButton.Label"/>
                    <Description resid="TaskpaneButton.Tooltip"/>
                  </Supertip>
                  <Icon>
                    <bt:Image size="16" resid="Icon.16x16"/>
                    <bt:Image size="32" resid="Icon.32x32"/>
                    <bt:Image size="80" resid="Icon.80x80"/>
                  </Icon>
                  <Action xsi:type="ShowTaskpane">
                    <TaskpaneId>Office.AutoShowTaskpaneWithDocument</TaskpaneId>
                    <SourceLocation resid="Taskpane.Url"/>
                  </Action>
                </Control>
              </Group>
            </OfficeTab>
          </ExtensionPoint>
        </DesktopFormFactor>
      </Host>
    </Hosts>
    <Resources>
      <bt:Images>
        <bt:Image id="Icon.16x16" DefaultValue="https://localhost:3000/assets/veriket_white_16.png"/>
        <bt:Image id="Icon.32x32" DefaultValue="https://localhost:3000/assets/veriket_white_32.png"/>
        <bt:Image id="Icon.80x80" DefaultValue="https://localhost:3000/assets/veriket_white_80.png"/>
      </bt:Images>
      <bt:Urls>
        <bt:Url id="Functions.Script.Url" DefaultValue="https://localhost:3000/functions.js"/>
        <bt:Url id="Functions.Metadata.Url" DefaultValue="https://localhost:3000/functions.json"/>
        <bt:Url id="GetStarted.LearnMoreUrl" DefaultValue="https://go.microsoft.com/fwlink/?LinkId=276812"/>
        <bt:Url id="Taskpane.Url" DefaultValue="https://localhost:3000/taskpane.html"/>
      </bt:Urls>
      <bt:ShortStrings>
        <bt:String id="Functions.Namespace" DefaultValue="temp"/>
        <bt:String id="GetStarted.Title" DefaultValue="Classify Your Files"/>
        <bt:String id="CommandsGroup.Label" DefaultValue="temp"/>
        <bt:String id="TaskpaneButton.Label" DefaultValue="Classify"/>
      </bt:ShortStrings>
      <bt:LongStrings>
        <bt:String id="GetStarted.Description" DefaultValue="temp"/>
        <bt:String id="TaskpaneButton.Tooltip" DefaultValue="Click to Make a Classification"/>
      </bt:LongStrings>
    </Resources>
  </VersionOverrides>
</OfficeApp>

内容的提问来源于stack exchange，提问作者FATIH KARAMESE