Convert MDB to XML Online

1) Upload MDB file to convert

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Allowed file types: fasta, qif, ofx, iif, srt, ics, excel, ris, bib, ods, xls, xlsx, xlsm, csv, tsv, tab, xlsb, xltx, xlr, pxl, qpw, wb3, wq1, dbf, wk3, 123, mdb, evtx, pages, numbers, sqlite

2) Set converting MDB to XML options

3) Get converted file

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How to convert MDB to XML?

💾 Upload Your File: Go to the site, click on «Upload File,» and select your MDB file.

✍️ Set Conversion Options: Choose XML as the output format and adjust any additional options if needed.

Convert and Download: Click 👉«Download Converted File»👈 to get your XML file.

Cloud Based

Convert MDB to XML without any specialised software. Upload the file in your browser and download the XML in seconds, on any device.

Secure

Data files can hold records and structured fields. Your MDB upload is encrypted in transit with HTTPS/TLS and processed in access-controlled data centers during the conversion to XML.

Ease of Use

Converting from MDB to XML has never been so simple. Our intuitive interface lets you convert files in just a few clicks.

Privacy

The records in your MDB are never inspected or reused. After the conversion to XML, both files are deleted automatically from our servers. Privacy Policy.

MDB File

File extension	.MDB
Category	File
Description	MDB is a database file created in Microsoft Access. It contains tables, queries, forms, macros, and can be used as a standalone application or with other databases.
Associated programs	Microsoft Access, LibreOffice Base, MDB Viewer Plus
Developed by	Microsoft
MIME type	application/x-msaccess
Useful links	More detailed information on MDB files
Conversion type	MDB to XML

XML File

File extension	.XML
Category	Document File
Description	XML is a versatile kind of language, which resembles HTML. Although they seem to have pretty much in common, as both are based on tags and define documentsí content and structure, they cannot replace each other. First, HTML demonstrates data, while XML describes it. Second, HTML uses standard tags, while XML does not use any, and users who write XML documents actually invent them. XMLs appear to be simpler and more flexible than HTMLs, and they present a very consistent way of sharing information. Meanwhile, these files bear static data, which cannot be rendered without a piece of software.
Associated programs	Chrome Firefox Microsoft Internet Explorer Microsoft Office InfoPath Notepad Oxygen XML Editor Safari
Developed by	World Wide Web Consortium
MIME type	application/xml text/xml
Useful links	More detailed information on XML files

2026-01-31

Exported an Access MDB table to XML for an API integration project. The structured output matched exactly what the receiving service expected.

Zofia Kaminska

2026-03-12

Converted our old MDB inventory database to XML as part of a system migration. Field names were preserved correctly as XML attributes.

Emmanuel Traoré

2026-04-28

Used this to extract data from an MDB file without needing Microsoft Access. The resulting XML was clean and ready for further processing with XSLT.

Yuki Hashimoto

Rating MDB to XML

4.7 (121 votes)Rate It

MDB to XML Converter — Frequently Asked Questions ▼

What is an MDB file and what data can it contain?

MDB is the Microsoft Access database format (Jet/DAO engine, Access 97–2003). It stores tables with typed columns (Number, Text, Date/Time, Currency, Yes/No, Memo), saved queries, indexes, and relationship definitions. A single MDB can contain dozens of tables holding anything from inventory records to employee data to sales transactions. Modern Access uses .accdb; many legacy systems still export or archive data as .mdb.

What does the XML structure look like for a typical MDB table?

The default output wraps all data under a root <database> element. Each table becomes a <table name="TableName"> block containing repeated <row> elements. Within each <row>, every column becomes a child element: for example, <CustomerID>ALFKI</CustomerID><CompanyName>Alfreds Futterkiste</CompanyName>. Dates are serialized in ISO 8601 format (YYYY-MM-DD or YYYY-MM-DDTHH:MM:SS), booleans as true/false, and numeric values as plain numerals. NULL fields appear as empty elements.

Can I export joined data from multiple tables in one XML file?

Not directly from raw tables — Access MDB stores data in normalized tables, and the converter outputs each table as its own block. For joined or denormalized output, create an Access Query that joins the tables you need before exporting. The converter then outputs that query's result as a single flat <table> block in the XML, which is much easier for downstream systems to consume than multiple normalized blocks.

Column names in my MDB contain spaces and special characters — will the XML be valid?

XML element names cannot contain spaces, start with a digit, or include symbols like #, %, or &. If your MDB columns have names like "Ship City" or "Q1#", the converter must replace invalid characters — typically converting spaces to underscores and stripping symbols. To control this precisely, rename the columns in an Access query (SELECT [Ship City] AS ShipCity) before converting, which gives you clean, predictable XML element names.

What is the maximum MDB file size the online converter accepts?

The online converter accepts MDB files up to 50 MB. Note that XML output is verbose — the same data stored compactly in MDB expands by 3–10x in XML due to repeated element tags. A 10 MB MDB of transaction records may produce a 50–100 MB XML file. If the output is very large, consider filtering by date range or exporting only specific tables, and compress the XML for transfer.

Can I batch convert multiple MDB archives to XML for an ETL pipeline?

The online tool converts one file at a time. For automated ETL workflows — converting a folder of legacy MDB archives to XML for import into a modern database, ERP, or document management system — CoolUtils desktop tools support command-line batch operation. Specify input directory, output path, target tables, and XML options. The resulting XML files can be piped directly into your XSLT transform or XML import process.

MDB to XML: Export Microsoft Access Data to Interoperable XML

Need your Access tables in a system-friendly, schema-driven format? This online MDB-to-XML converter turns .mdb (Microsoft Access/Jet) databases into clean, standards-ready XML you can feed to legacy apps, ETL pipelines, and document workflows. Upload your MDB, choose XML, and download structured data in seconds—no installs, no signup.

What Is an MDB File?

.mdb is the classic Microsoft Access format (Jet/DAO; Access 97–2003). It stores tables, queries, indexes, and relationships, with types like Number, Text, Date/Time, Currency, Yes/No, and Memo (long text). Many organizations still archive operational data as MDB even after moving to newer formats.

What You Get

Table-to-XML mapping: Each selected table (or query result) becomes an element under a single root. By default: <database> → one or more <table name="Orders"> → repeated <row> elements.
Field serialization: Columns are emitted as child elements inside each <row> (e.g., <OrderID>10248</OrderID>).
Types respected: Numbers as text numerals, booleans as true/false, dates in ISO 8601 (YYYY-MM-DD / YYYY-MM-DDTHH:MM:SS), and currency as formatted numerics.
Null handling: Empty elements or xsi:nil="true" (when XML Schema namespace is enabled).
UTF-8 output: Proper escaping of special characters (& < > " ') for safe parsing.
Optional XSD stub: Basic schema hints can accompany the XML to help validators and downstream tools.

Best Practices Before Converting

Export the right view: If you need joined/filtered data, create an Access Query first—converting that result produces a single, denormalized XML that’s easier to consume.
Clean column names: Prefer names that are valid XML element names (start with a letter/underscore; avoid spaces and symbols). Map awkward names in a query (e.g., SELECT [Ship City] AS ShipCity ...).
Normalize dates/currency: Set consistent formats in Access so values appear predictably in XML.
Limit scope: XML is verbose—export only the tables/columns and date ranges your consumer needs.
Memo/Long Text: Keep line breaks; avoid embedded RTF/HTML if the consumer expects plain text.

XML Structure & Options

Root element: Defaults to <database>; can include attributes like name or generatedAt.
Per-table blocks: <table name="Customers"> ... </table> containing repeated <row>.
Element vs attribute: IDs/codes can be emitted as attributes for compactness (e.g., <row id="10248"><CustomerID>ALFKI</CustomerID>...).
Binary/OLE fields: If present, binary data can be Base64-encoded or skipped; for documents, export from Access separately.
Relationships: XML will not recreate Access relationships; if you need nested hierarchies, materialize a query that joins parent/child data before conversion.

Working With the XML

Validation: Pair with an XSD and use your favorite validator or pipeline to catch type/shape regressions.
ETL: Import via XPath/XQuery or transform with XSLT to the target schema your system expects.
Compression: For large datasets, ZIP the XML; many consumers can ingest compressed payloads.

Troubleshooting

“File not recognized”: Ensure the source is a genuine .mdb (not .accdb or a renamed file).
Invalid XML names: Columns starting with digits or containing spaces/symbols—alias them in a query and reconvert.
Garbled characters: Source used a legacy code page; convert text to UTF-8 upstream or in Access before export.
Huge output: Filter rows/columns or split by month/category; XML is verbose by design.
Binary/OLE data: Embedded objects aren’t ideal in XML—export files separately, store paths/IDs in the XML.

Notes & Limitations

Static snapshot: XML contains values only—no forms, reports, macros, or Access relationship logic.
Types in text: Without strict XSD, consumers infer types from text; document expectations for dates/numbers.
ACCDB: This tool targets MDB. For .accdb, use the matching converter or save to MDB/CSV first.

Privacy & Workflow

Conversion runs in your browser session and produces a downloadable XML file in moments. For recurring jobs—batch processing, watched folders, command-line automation, custom naming, watermarks, or parallel XML+XSD generation—explore CoolUtils desktop tools. From legacy Access databases to interoperable XML, this converter makes data handoff simple and reliable.

Feature	Online Converters	CoolUtils Desktop	Excel Built-in	Other Software
Batch Conversion	Limited	✅ Unlimited	Manual only	Limited
File Size Limit	1-5MB	✅ No limits	System dependent	Varies
Privacy & Security	Upload required	✅ 100% offline	✅ Local only	Varies
Conversion Speed	Internet dependent	✅ Fast local processing	Slow	Medium
Advanced Options	Basic	✅ Full customization	Limited	Basic
Cost	Free/Premium	One-time purchase	Requires Office	Subscription
Formatting Preservation	Good	✅ Excellent	Good	Varies
Multiple Formats Support	Limited	✅ 40+ formats	Few formats	Limited

Convert MDB to XML Online

How to convert MDB to XML?

MDB File

XML File

MDB to XML Converter — Frequently Asked Questions ▼

What is an MDB file and what data can it contain?

What is an MDB file and what data can it contain?

What does the XML structure look like for a typical MDB table?

What does the XML structure look like for a typical MDB table?

Can I export joined data from multiple tables in one XML file?

Can I export joined data from multiple tables in one XML file?

Column names in my MDB contain spaces and special characters — will the XML be valid?

Column names in my MDB contain spaces and special characters — will the XML be valid?

What is the maximum MDB file size the online converter accepts?

What is the maximum MDB file size the online converter accepts?

Can I batch convert multiple MDB archives to XML for an ETL pipeline?

Can I batch convert multiple MDB archives to XML for an ETL pipeline?

MDB to XML: Export Microsoft Access Data to Interoperable XML

What Is an MDB File?

What You Get

Best Practices Before Converting

XML Structure & Options

Working With the XML

Troubleshooting

Notes & Limitations

Privacy & Workflow

Convert from MDB

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