Opening ACCDT Files

The ACCDT file type is primarily associated with Microsoft Access.

ACCDT	File extension: ACCDT
	File type:	template file

What is an ACCDT file?

ACCDT files mostly belong to Microsoft Access. ACCDT files are Microsoft Access template files used to build new Access web databases. They work as a blueprint by storing predefined objects such as tables, queries, forms, and reports. The file format is based on a ZIP structure, which means its contents are compressed into one container.
When you open an ACCDT file using Microsoft Access, the application automatically uses the template to start a new database project.

Format: Stored as a ZIP archive.

Purpose: Serves as a template for new Access databases.

Usage: Helps in quickly setting up a database with predesigned elements.

FilExt.com tip: You can learn more on the Microsoft Access website.

How to open an ACCDT file

You need a suitable software like Microsoft Access to open an ACCDT file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your ACCDT file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ACCDT file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ACCDT Text Viewer

Choose your .accdt file to analyze

or drag and drop it here

Online File Viewer

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ACCDT file format:

To view or edit ACCDT files you need to know the file format, because it determines how the data in this file is stored. The initial characters of a file are called signature, sometimes also referred to as "magic bytes". The signature can be used to infer the file format. If the file extension or signature does not match the file format, errors will occur when opening or editing the file. So a detailed analysis of a file is vital in order to determine the format and the associated program. Our evaluation of the ACCDT files is as follows:

The ACCDT file extension is not widely used. Such a file predominantly uses a uniform format. The two most popular formats are as follows:

• 95% of all ACCDT files use the ZIP algorithm, i.e. an ACCDT file contains several compressed files. The included 52 to 150 files have file names such as [Content_Types].xml, \_rels\.rels, \docProps\core.xml, \template\_rels\template.xml.rels, \template\database\databaseProperties.xml, \template\database\navpane.xml, \template\database\relationships.xml, \template\database\vbaReferences.xml and \template\template.xml. A little tip: If you rename the file extension to .zip and then double-click, you will see the included files and images. Most of these files are 140 KB to 1 MB in size. The keywords [Content_Types].xml are typical for these files. A usual file name is Contacts.accdt. These files are attributed to database, inventory, templates, tracking, access, northwind, management, students, template, project and student.

All the rest of the ACCDT files (5%) have different formats. Files like these are sometimes linked to maintenance, account, vehicle, create, ledger, asset, card or time. If you want to find out what your ACCDT file contains, drag and drop it onto this page.