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BC 2026 release wave 2unofficial launch event map, by waldo

Features › Developer tools

Streaming Open in Excel

GA · 1 min in 1 video · dev relevance medium · not in the documented features baseline (docs checked 2026-10-02)

Streaming Open in Excel

Open in Excel uses a streaming implementation with less memory and fewer out of memory exceptions. Larger files can be loaded.

Area: Developer tools. Status: GA. Developer relevance: medium. Airtime: 1 min across 1 video.

Status evidence

  • Nothing said about status; launch event convention: generally available unless stated otherwise.

Where they talk about it

Quotes

  • 0:59 "now we're using a streaming based implementation for open Excel way more way less memory usage" - States the design change behind fewer out of memory errors when opening big Excel files.
  • 1:30 "other than the deletion it's a read only which kind of makes sense" - Gives the main limitation of the recent records virtual table.

Documented features match

  • No documented item matched. Telemetry doc is different

Docs checked on 2026-10-02: the match is against Microsoft's what's new pages for the wave as they were on that date. Microsoft keeps filling the documentation, so "no documented item" can go stale. The wider product documentation on learn.microsoft.com was searched for this feature on the same date; the feature's data lists an article when one was found.

Tags: excel, performance, runtime, al

Generated by pipeline step 06. Source: YouTube auto-captions of the launch event videos, see the deep links. Not official.