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ExcelMaster

Changelog

Track user-facing fixes, experience improvements, and important product changes.

ExcelMaster v0.6.42

Adds the provenance review sidebar and hardens Excel automation, update-session handling, and model routing.

Jun 16, 2026
  • Adds a provenance review sidebar for workbooks that carry source ledgers, embedded evidence, or linked PDFs.
  • Improves live Excel automation resilience with clearer COM error hints, safer retry behavior, and stronger process supervision.
  • Hardens VSTO lifecycle paths around backups, SmartAction cards, login callbacks, and large write operations.
  • Separates transient session verification outages from real authentication rejection so recoverable server issues do not clear valid sessions.
  • Refreshes model routing and prompt guardrails while expanding the VBA learning content library across supported locales.
ExcelMaster v0.6.41

Improves VBA Trust Center setup handling and refreshes the WebSetup download path.

Jun 4, 2026
  • VBA enablement now checks workbook VBA project access before turning the feature on, so blocked Trust Center settings are caught earlier.
  • When Excel blocks programmatic VBA project access, ExcelMaster now shows a clearer Trust Center setup card with retry and settings actions.
  • The sidebar is preserved and restored while users open settings to enable VBA project access.
  • VBA Trust Center guidance is localized across the in-app interface.
  • The WebSetup bootstrapper now uses the primary download path without the removed OSS fallback.
ExcelMaster v0.6.40

Improves advanced VBA automation, restore routing, monitor version tracking, and site embedding protection.

May 19, 2026
  • Advanced VBA preparation now handles generated module specs more reliably and keeps review/run macro choices aligned with the prepared code.
  • VBA guidance and static checks are clearer for formula-writing workflows, escaped quotes, and enabled-mode prompts.
  • XLSM restore now routes backups by mutation scope so restore behavior follows the workbook that was actually changed.
  • Admin monitoring preserves growth-event client versions for more accurate support diagnostics.
  • The public site now denies iframe embedding with CSP and X-Frame-Options headers.
ExcelMaster v0.6.39

Adds stable/dev release-channel preparation, improves VBA/XLSM automation reliability, and refreshes free web tools and OCR support.

May 18, 2026
  • Release delivery is prepared for separate stable and dev manifests while the public stable channel continues to use the official latest.json path.
  • VBA and XLSM workflows are more reliable, with safer macro conversion, restore continuity, modal recovery, and stronger static checks.
  • Workbook automation diagnostics are clearer through native worker crash classification, AskUserQuestion progress updates, and session credit visibility.
  • Free web tools now include Word Compare, Word Translator, and PPT to PDF pages, with broader localized copy across tool pages.
  • OCR-backed free tools were updated against the real Aspose.OCR API and include ONNX Runtime support for recognition.
ExcelMaster v0.6.36

Improves desktop delivery, offline workbook handling, VBA enablement, and installer launch reliability.

May 15, 2026
  • The desktop download flow now supports the lightweight WebSetup bootstrapper while keeping full installer delivery available for fresh installs and repairs.
  • Offline workbook reads are more reliable through Aspose-backed loading, with stronger live Excel state restore behavior around workbook operations.
  • Explicit VBA requests now surface the smart enable flow earlier, so users get clearer guidance before macro-dependent automation runs.
  • Installer and post-install launch handling were hardened to avoid unnecessary Excel startup during setup and to normalize Excel error-code reporting.
ExcelMaster v0.6.31

Improves multi-sheet task reliability by removing duplicated additional-sheet context from the Agent prompt.

May 5, 2026
  • Additional sheets selected by the user are now referenced from the workbook structure JSON instead of being expanded a second time.
  • The prompt is shorter and less redundant for cross-sheet tasks, reducing the chance that weaker models re-scan sheets unnecessarily.
  • GLM 5.1 guidance now points directly at the `sheet` and `extra_sheets` fields as the source of truth.
ExcelMaster v0.6.30

Improves runtime observability, Python Excel tool diagnostics, installer reliability, and support-side workbook artifact preview.

May 4, 2026
  • Runtime events now use a durable low-overhead local queue, reducing upload-time races and avoiding extra network pressure in the agent path.
  • Python Excel tool results now emit structured runtime events for failures, slow runs, cancellation, and terminal statuses.
  • The installer now avoids a false fatal VSTO -203 result when the final Office loader invariant is healthy.
  • The admin client log viewer can preview workbook artifacts directly from uploaded session files.
ExcelMaster v0.6.29

Fixes a false-positive formula validation failure for same-workbook sheet references in multi-workbook contexts.

May 4, 2026
  • Same-workbook sheet references are no longer mistaken for sheets from another read-only source workbook.
  • Python-based formula edits using LET, FILTER, VSTACK, and similar cross-sheet formulas now correctly allow local sheet references.
  • Workbook identity handling is more stable when multiple sheets or workbooks are selected.
ExcelMaster v0.6.28

Refreshes the signed, obfuscated release package from the latest main build.

May 4, 2026
  • New downloads and repair installs now receive the refreshed v0.6.28 signed installer.
  • The packaged agent and runtime payload were rebuilt from the latest main branch state.
  • Release metadata is aligned across the installer, runtime payload, agent zip, and website download version.
ExcelMaster v0.6.26

Refreshes the signed, obfuscated release package from the latest main build.

May 3, 2026
  • New downloads and repair installs now receive the refreshed v0.6.26 signed installer.
  • The packaged agent and runtime payload were rebuilt from the latest main branch state.
  • Release metadata is aligned across the installer, runtime payload, agent zip, and website download version.
ExcelMaster v0.6.25

Fixes fresh-install Office add-in activation by invoking the verified VSTO customization installer during setup.

May 3, 2026
  • Fresh installs and repair installs now actively launch the Microsoft Office VSTO customization installer for ExcelMaster.
  • If Office requires user confirmation, the verified publisher prompt appears during setup instead of being deferred until a manual repair step.
  • Setup now stops with an explicit error if Office add-in registration cannot be completed.
ExcelMaster v0.6.24

Ships an agent-side hotfix that improves Python Excel execution safety and restore failure handling.

May 3, 2026
  • Blocked Python syntax errors before the agent creates a step backup or touches the workbook.
  • Normalized restore failures so the agent and UI consistently treat failed restores as errors.
  • Kept existing users on the L1 agent-only update path while publishing a fresh full installer for new installs and repairs.
ExcelMaster v0.6.22

Refreshes the signed obfuscated installer, runtime package, and update metadata for the 0.6.22 release channel.

May 2, 2026
  • Rebuilt the production installer with obfuscation and EV code signing.
  • Recompiled the packaged agent and refreshed bundled WebView UI assets.
  • Updated release metadata so fresh installs, repairs, and update checks resolve to v0.6.22.
ExcelMaster v0.6.21

Refreshes the signed installer, runtime package, and update metadata for the 0.6.21 release channel.

May 2, 2026
  • Rebuilt the production installer with code signing and packaged runtime assets.
  • Recompiled the packaged agent and refreshed bundled WebView UI assets.
  • Updated release metadata so fresh installs, repairs, and update checks resolve to v0.6.21.
ExcelMaster v0.6.20

Improves subscription management, launch-plan billing, and user-facing model/download presentation.

May 2, 2026
  • Added V2 subscription self-management and improved credit balance handling.
  • Preserved Founding Plan tier display and added the migration flow for launch-plan users.
  • Cleaned up user-facing model and download surfaces, including beta badges and hiding debug-only models.
ExcelMaster v0.6.19

Improves account session reliability and Excel edit safety for real-world workbooks.

May 2, 2026
  • Fixed account session refresh handling so login and billing state stay current.
  • Improved bounded range post-processing for more reliable Excel read and write operations.
  • Strengthened Agent guidance for cross-sheet formulas, retry-safe edits, and unsaved workbook snapshots.
ExcelMaster v0.6.18

Improves Agent stability and release observability for complex Excel automation tasks.

Apr 30, 2026
  • Fixed internal tool metadata leakage that could distract complex Agent tasks.
  • Improved client log inspection and Agent execution timelines.
  • Strengthened batch anomaly monitoring for post-release checks.