List of supported File Extensions

HRSD File-Type Policy

Summary

UKG HR Service Delivery (HRSD) enforces a file-type policy across all HRSD applications, including Document Manager, People Assist, Evault, and Core APIs.

This policy helps keep customer data secure and systems compliant by ensuring that only supported file formats with valid filenames can be uploaded and stored in HRSD.

Who should read this?

HR and IT administrators, integrators, and end users who upload or automate uploads of documents into HRSD.

What is enforced?

  • Supported file formats only

    HRSD accepts file uploads only when the document’s last file extension is on the supported formats list (see below).

  • Filename required

    Files must have a valid filename. Files without a name, or with a name consisting only of an extension (for example, .pdf), are not supported

  • Filename length

    Filenames must be 255 characters or fewer, including the extension.

  • Upload failures

    If a file does not meet these requirements, HRSD blocks the upload and does not store the document. An error message is displayed explaining the reason for the failure.

Note

Applies to: Document Manager, People Assist, Evault, Core APIs, and other HRSD applications that store documents in HRSD.

Supported formats (Allowlist v1.0)

Validation uses the last file extension only (e.g., report.backup.pdf ✅ , invoice.pdf.exe ❌ ).

UKG may update this list over time. Any updates will be reflected in this documentation.

File Category

Supported Extensions

Documents

.doc, .docx, .pptx, .ppt, .xlsx, .xls, .xlt, .xltx, .txt, .rtf, .pdf, .mht, .odt, .ods, .dot, .dotx, .csv, .potx, .odp, .htm, .html, .json, .msg, .eml, .docm, .dotm, .xlsm, .xltm, .pptm, .pub, .one, .wpd, .vsd, .vsdx, .mhtml, .xlsb, .export

Images

.png, .jpg, .jpeg, .jpe, .gif, .bmp, .heic, .svg, .tiff, .tif, .webp, .ico, .cr2, .nef, .arw, .rw2, .dng, .jfif, .jp2, .emf

Archives / utilities

.zip, .xml, .log, .7z, .rar, .tar, .gz, .cpgz, .pgp, .gpg, .p12, .fax

Documentation

.md, .tex

OpenDocument variant

.odg

Structured & e-publication

.epub, .xps, .oxps, .djvu

Apple productivity

.pages, .numbers, .key

Email & metadata

.vcf

Audio

.mp3, .wav, .aac, .wma, .flac, .m4a, .amr, .opus

Video

.mp4, .avi, .mov, .wmv, .mkv, .webm, .3gp, .mpg, .m4v, .mts, .asf, .wmf

Creative / CAD / 3D

.psd, .ai, .indd, .eps, .xcf, .fig, .dwg, .dxf, .stl, .skp, .igs, .sldprt

Filename rules

  • Maximum length: 255 characters (including extension)

  • Case & spaces: Validation is case-insensitive; leading and trailing spaces are ignored

  • Multiple dots: Only the last extension is evaluated

  • Filename required: Files must include a valid name before the extension

Examples

Example filename

Result

Reason

payslip.pdf

Accepted ✅

.pdf is supported

report.backup.pdf

Accepted ✅

Last segment .pdf is supported

invoice.pdf.exe

Rejected ❌

Last segment .exe is not supported

very-long-name…(256+)

Rejected ❌

Exceeds 255-character limit

.pdf

Rejected ❌

Missing filename before extension

(empty)

Rejected ❌

Missing filename

What you should do

  1. Ensure files uploaded to HRSD use supported file formats.

  2. Confirm that all files have valid, non-empty filenames.

  3. Update automations and integrations to comply with filename length and format requirements.

  4. Shorten filenames that exceed the 255-character limit.

Questions or concerns?

If you believe a commonly used, safe file format should be supported, contact UKG Support through the UKG Community: https://community.ukg.com/s/

Version information

Allowlist version: v1.0

UKG may update supported formats as security best practices and usage evolve. Any changes will be communicated through official release notes.