{"id":2217,"date":"2026-07-31T07:56:05","date_gmt":"2026-07-30T23:56:05","guid":{"rendered":"https:\/\/xlwings.net\/blog\/?p=2217"},"modified":"2026-03-28T11:17:28","modified_gmt":"2026-03-28T11:17:28","slug":"how-to-use-applicationvbe-in-the-xlwings-api-way","status":"publish","type":"post","link":"https:\/\/xlwings.net\/blog\/how-to-use-applicationvbe-in-the-xlwings-api-way\/","title":{"rendered":"How to use Application.VBE in the xlwings API way"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The Application.VBE property in Excel&#8217;s object model provides a reference to the Visual Basic for Applications (VBA) development environment. This is a powerful and advanced feature, primarily used for programmatically interacting with the VBA project, such as adding modules, reading code, or managing references. In xlwings, this property is accessed through the <code>api<\/code> property, which exposes the underlying pywin32 COM object, allowing you to call the raw Excel VBA object model methods.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Functionality:<\/strong><br>The <code>VBE<\/code> property returns the root object of the VBA Extensibility library (the <code>VBIDE.VBE<\/code> object). It enables automation of the VBA Integrated Development Environment (IDE) from an external script. Common use cases include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Dynamically adding standard or class modules to a workbook.<\/li>\n\n\n\n<li>Inserting or modifying VBA macro code.<\/li>\n\n\n\n<li>Inspecting existing VBA project components.<\/li>\n\n\n\n<li>Enabling programmatic access to the VBA project (which often requires setting the &#8220;Trust access to the VBA project object model&#8221; in Excel&#8217;s Trust Center settings).<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Syntax in xlwings:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>vbe_object = xw.apps&#91;app_key].api.VBE\n# or for the active Excel instance\nvbe_object = xw.apps.active.api.VBE<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>xw.apps[app_key]<\/code> or <code>xw.apps.active<\/code>: This gets the specific or active xlwings <code>App<\/code> object, representing an Excel instance.<\/li>\n\n\n\n<li><code>.api<\/code>: This is the crucial bridge to the pywin32\/COM object, providing access to the native Excel <code>Application<\/code> object.<\/li>\n\n\n\n<li><code>.VBE<\/code>: This is the property call that returns the <code>VBIDE.VBE<\/code> object.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Important Notes:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Security Setting:<\/strong> To use the <code>VBE<\/code> property successfully, Excel must have the &#8220;Trust access to the VBA project object model&#8221; checkbox enabled. This is found under <code>File > Options > Trust Center > Trust Center Settings > Macro Settings<\/code>.<\/li>\n\n\n\n<li><strong>Library Reference:<\/strong> Your Python environment needs the <code>win32com<\/code> library (provided by <code>pywin32<\/code>). xlwings handles this dependency.<\/li>\n\n\n\n<li><strong>VBIDE Constants:<\/strong> When using methods of the returned <code>VBIDE.VBE<\/code> object, you may need constants like <code>vbext_ct_StdModule<\/code>. These are available in the <code>win32com.client.constants<\/code> module after ensuring the <code>VBIDE<\/code> type library is referenced. A simpler approach is to use their known integer values (e.g., <code>1<\/code> for a standard module).<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Code Example:<\/strong><br>The following example demonstrates how to access the <code>VBE<\/code> object, check if the VBA project is accessible, and add a new standard module to the active workbook containing a simple macro.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import xlwings as xw\n\n# Connect to the active Excel instance\napp = xw.apps.active\n\n# Access the VBE object via the .api property\nvbe = app.api.VBE\n\n# Get the active workbook's VBA project\n# The 'VBProject' property of a Workbook is accessed via its .api\nactive_wb_vbproject = app.books.active.api.VBProject\n\n# Check if we have access (this will raise an error if trust settings are off)\nprint(f\"VBE Version: {vbe.Version}\")\n\n# Add a new standard module to the active workbook's VBA project\n# Constant vbext_ct_StdModule = 1\nnew_module = active_wb_vbproject.VBComponents.Add(1) # 1 represents a standard module\nnew_module.Name = \"MyNewModule\"\n\n# Insert code into the new module\ncode_string = \"\"\"\nSub HelloFromXlwings()\nMsgBox \"This module was added programmatically via xlwings!\"\nEnd Sub\n\"\"\"\nnew_module.CodeModule.AddFromString(code_string)\n\nprint(f\"Module '{new_module.Name}' added successfully.\")<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Application.VBE property in Excel&apos;s object model provides a reference to the Visual Basic for Ap&#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-2217","post","type-post","status-publish","format-standard","hentry","category-xlwings-api-reference"],"_links":{"self":[{"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/posts\/2217","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=2217"}],"version-history":[{"count":1,"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/posts\/2217\/revisions"}],"predecessor-version":[{"id":3389,"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/posts\/2217\/revisions\/3389"}],"wp:attachment":[{"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/media?parent=2217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/categories?post=2217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xlwings.net\/blog\/wp-json\/wp\/v2\/tags?post=2217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}