XER Viewer Privacy Policy

Effective date: October 11, 2026

Scope

This policy applies to the XER Viewer website and XER Viewer Desktop for Windows and macOS, including versions distributed through the Microsoft Store and Mac App Store.

Project and application data

XER Viewer Desktop reads Primavera P6 XER files that you choose to open. Your project files, parsed schedule data, application preferences, and locally recorded usage counters remain on your device. XER Viewer does not upload this data to its servers or share it with third parties.

Accounts, analytics, and advertising

The desktop app does not require an XER Viewer web account and does not use advertising, third-party analytics, or tracking technologies. The website uses Vercel Analytics and Speed Insights to understand aggregate website usage and performance. These services may process technical information such as the page visited, browser, device, and approximate region; XER schedule contents are not included.

Optional product updates

After you open a schedule on the website, you may optionally provide an email address to receive occasional XER Viewer product updates and news. We store the address, the signup source, consent version, and signup/update timestamps. We use it to send those communications and to count update subscribers. Your XER file and schedule data are not sent with the email address. You can decline without losing any functionality and unsubscribe at any time.

Feedback

If you send feedback on the website, we store your message, feedback type, optional rating, and relevant account and browser context. You may also provide an email address so we can reply or tell you when a requested feature is available. Providing an email with feedback does not subscribe you to product updates.

Diagnostics

The app may create diagnostic logs and crash dump files on your device to help troubleshoot technical problems. These files are not automatically uploaded. You control whether to provide them when requesting support.

Store purchases and updates

Microsoft Store purchases and updates are handled by Microsoft, and Mac App Store purchases and updates are handled by Apple. Those companies process transaction and account information under their own privacy policies. XER Viewer does not receive your payment-card details from either store.

Direct-download license service

The separately distributed Windows direct-download edition may send a license key, device name, and license instance identifier to Lemon Squeezy when you activate, validate, or deactivate a license. This license service is not used to process project files or schedule data. This section does not apply to purchases managed by the Microsoft Store.

Support

If you contact info@xerviewer.org, we use the information you provide only to respond to and resolve your request. Support information is retained only as long as reasonably needed for that purpose and applicable business or legal requirements.

Your choices

You can remove locally stored projects and preferences through the app or by uninstalling it and deleting its local application data. You can also delete diagnostic files from the app's diagnostic folder. To unsubscribe from product updates or request deletion of your email address, use the unsubscribe option in an email or contact us.

Changes to this policy

We may update this policy when the app or its data practices change. The effective date above identifies the latest version.

Contact

For privacy questions, contact info@xerviewer.org.