Live Dev Sandbox copy — switch to Live for the real thing.
Dev sandbox This is a scratch copy of the app (dev.html). Break it, experiment, try new customer formats — the live version at index.html is untouched. When a change is ready, copy this file over index.html to promote it.
Forecast tooling · dev sandbox

Steel Warehouse Forecast Converter

A browser-only replacement for master_forecast_router.xlsm, with the same auto-detection, matching, and missing-parts checks as the macro. The customers it handles are the tabs below. Your forecast file is converted in this tab and never uploaded anywhere — only the shared parts list leaves it.

Runs entirely in this tab No install, no login Your file never leaves the browser
01

Parts reference

checking for saved parts…
02

Run settings

Only demand dated in this year gets pulled into the output.
03

Raw forecast file

.csv or .xlsx — any customer below
Drop a raw forecast file here, or click to browse
Customer is detected automatically from the file’s columns, and you can override it below if a file needs it.
04

Output

Nothing built yet
Upload a raw file above, then click Build output.