spreadsheet.openverbs.com · 2 listed services · provider site
Parse an A1-style cell reference (e.g. "B3" or "$AA$100") into 1-based row and column numbers, plus the column letters and whether each part is absolute.
Parse an A1 range like "A1:C10" into its start and end cells (normalized so start is the top-left) and its extent — row count, column count and total cell count.
Provider identity is derived from the domain or repository in the source record. If two vendors share a host, they appear together here — that is a limitation of the data, not a statement about ownership.