Convert XML to Fixed-Width File Automatically
Advanced ETL Processor is Windows software for converting XML to Fixed Width File without writing scripts. Map, validate, and transform fields visually, then run the conversion or schedule it to repeat.
Need to generate fixed-width text files from XML data? With Advanced ETL Processor, you can convert structured or hierarchical XML to fixed-width flat files with no scripting, XSLT, or manual formatting required.
XML to Fixed Width File conversion workflow
Keep the conversion in one reusable package so field mapping, validation, output settings, and run history do not depend on a manual export checklist.
- Read: Select the XML input and the files or records to process.
- Map: Match source fields to the required Fixed Width File structure and apply transformations.
- Validate and write: Check data types, required values, formats, and rejected rows before creating the output.
- Schedule and review: Run once for testing, then schedule repeat work and use the log to investigate failures.
Video Tutorial
Watch a XML conversion walkthrough showing how to configure the source, map fields, and write the output in Advanced ETL Processor.
What Is a Fixed-Width File?
A fixed-width file is a plain-text format where each column has a predefined width. Unlike CSV or delimited files, fixed-width data does not use separators like commas or tabs - it relies on strict field positions, making it ideal for legacy systems and mainframe processing.
Advanced ETL Processor enables you to map XML fields to exact positions and widths, automatically padding or trimming data to match export specs.
Why Convert XML to Fixed-Width Format?
- Comply with integration formats for banks, government, or legacy systems
- Control field alignment and length precisely
- Automate generation of mainframe-compatible data outputs
How to Convert XML to Fixed-Width - Step-by-Step
1. Launch Advanced ETL Processor
Start the Enterprise Edition. In Tools > Connections, define:
- XML File connection as the source
- Fixed-Width Text File Writer as the output
2. Create a New Transformation
Right-click a transformation group and select New to open the canvas.
3. Configure XML Reader
- Drag the XML Reader onto the canvas if necessary
- Double-click to open Properties
- Select your XML file
- Select Table and Record XML Tags
4. Configure Fixed-Width Writer
- Drag the Fixed-Width Writer onto the canvas
- Double-click to open Properties
- Set the output file path and column widths
5. Map Fields and Set Widths
Use AutoMap or manually connect fields. Then:
- Set exact width for each output field
- Choose padding (spaces, zeros) and alignment (left/right)
- Apply data cleansing or formatting rules
6. Run the Transformation
Click Execute to export the XML data as a fixed-width file. The file is ready for use in any system requiring position-based input.
Automation and Scheduling
- Schedule recurring XML-to-fixed-width exports
- Trigger jobs on file arrival or remote events
- Log processing results and email notifications
Help with your XML conversion
If you get stuck, ask in the support forum and include a sample input, the expected output, and the relevant log message. You can also review the conversion resources below.
FAQ
Can Advanced ETL Processor convert XML to Fixed Width File?
Yes. Advanced ETL Processor can convert XML to Fixed Width File, validate the data, and log the workflow run.
Do I need to write a script?
No scripting is required for routine conversion, validation, scheduling, and logging. Use scripts only when the rule genuinely needs custom code.
Can I convert multiple XML files at once?
Yes. Point the file reader at a folder and use a file mask so matching XML files are processed in one package.
Can the Fixed Width File output be created on a schedule?
Yes. The Enterprise edition can run the package on a schedule or as part of a larger ETL process, then write the Fixed Width File output with the same naming and validation rules each time.
What should I check before the first production run?
Check headers, data types, date formats, decimal separators, encodings, empty values, and output file naming.
When should I not automate this conversion yet?
Do not automate it until source columns, data types, output naming, and error handling are clear. Conversion repeats rules; it does not repair vague ones.
Can I try it before buying?
Yes. Download the fully functional 30-day trial and build one small conversion package first.
Useful links
Start with the Advanced ETL Processor Enterprise overview, then download the fully functional 30-day trial. The convert-data hub lists the other XML conversion workflows.
References
External documentation
Related tutorials and articles
Try the XML to Fixed Width File conversion workflow
Download the fully functional Advanced ETL Processor Enterprise trial for Windows. Enterprise includes scheduled, unattended production execution.
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