{"id":2214,"date":"2026-07-29T15:13:02","date_gmt":"2026-07-29T07:13:02","guid":{"rendered":"https:\/\/xlwings.net\/blog\/?p=2214"},"modified":"2026-03-28T10:49:06","modified_gmt":"2026-03-28T10:49:06","slug":"how-to-use-applicationusername-in-the-xlwings-api-way","status":"publish","type":"post","link":"https:\/\/xlwings.net\/blog\/how-to-use-applicationusername-in-the-xlwings-api-way\/","title":{"rendered":"How to use Application.UserName in the xlwings API way"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The <code>Application.UserName<\/code> property in Excel&#8217;s object model represents the name of the current user as set in the Excel application options. In xlwings, this property can be accessed to retrieve or set the user name, which is useful for personalizing workbooks, tracking user activity, or implementing user-specific logic in automated Excel tasks. This property reflects the name entered under &#8220;File &gt; Options &gt; General &gt; User name&#8221; in Excel, and changes made via xlwings will update this setting globally within the Excel instance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Functionality:<\/strong><br>The primary function is to get or set the current user&#8217;s name in Excel. This can be utilized to customize workbook behavior, such as displaying personalized messages, logging user interactions, or controlling access to certain features based on the user. It is a straightforward way to integrate user identity into automation scripts.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Syntax:<\/strong><br>In xlwings, the <code>Application<\/code> object is accessed through the <code>app<\/code> property of a workbook or directly via <code>xw.apps<\/code>. The <code>UserName<\/code> property is used as follows:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>To get the current user name: <code>user_name = app.user_name<\/code><\/li>\n\n\n\n<li>To set a new user name: <code>app.user_name = \"NewUserName\"<\/code><br>Here, <code>app<\/code> refers to an instance of the Excel application (e.g., <code>xw.App<\/code> or <code>xw.apps.active<\/code>). The property is a string, and setting it requires a valid string input; if no argument is provided or an invalid type is used, Excel may raise an error.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Parameters:<\/strong><br>The <code>UserName<\/code> property does not take parameters in the traditional sense, as it is a property getter\/setter. When setting, the value must be a string representing the desired user name. There are no additional options or enumerations; any text can be used, but it is typically limited to alphanumeric characters and common symbols.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Examples:<\/strong><br>Below are practical xlwings API code instances demonstrating the use of <code>Application.UserName<\/code>:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Retrieving the Current User Name:<\/strong><br>This example connects to the active Excel instance and prints the current user name.<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>import xlwings as xw\n# Connect to the active Excel application\napp = xw.apps.active\n# Get the user name\ncurrent_user = app.user_name\nprint(f\"Current user: {current_user}\")<\/code><\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>Setting a New User Name:<\/strong><br>This example changes the user name to a custom value and verifies the update.<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>import xlwings as xw\n# Start a new Excel instance (or use an existing one)\napp = xw.App(visible=True)\n# Set a new user name\napp.user_name = \"JohnDoe\"\n# Check the updated name\nupdated_user = app.user_name\nprint(f\"Updated user: {updated_user}\")\n# Close the application\napp.quit()<\/code><\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>Using User Name for Personalization:<\/strong><br>This example retrieves the user name and uses it to personalize a message in a workbook.<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>import xlwings as xw\n# Open a specific workbook\nwb = xw.Book(\"example.xlsx\")\napp = wb.app\n# Get user name and insert into a cell\nuser = app.user_name\nwb.sheets&#91;0].range(\"A1\").value = f\"Welcome, {user}!\"\n# Save and close\nwb.save()\nwb.close()<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The `Application.UserName` property in Excel&apos;s object model represents the name of the current user &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[],"class_list":["post-2214","post","type-post","status-publish","format-standard","hentry","category-xlwings-api-reference"],"_links":{"self":[{"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/posts\/2214","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/comments?post=2214"}],"version-history":[{"count":2,"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/posts\/2214\/revisions"}],"predecessor-version":[{"id":3386,"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/posts\/2214\/revisions\/3386"}],"wp:attachment":[{"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/media?parent=2214"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/categories?post=2214"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/tags?post=2214"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}