remote refs in spreadsheet

[Alan Bram <alanbram@speakeasy.net>]

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I'm having trouble using a remote reference in an Org-mode spreadsheet.

The Info node entitled "References" says that the first argument to the
"remote()" expression "... can also be the ID of an entry, even in a
different file, ...". What does this mean? What is the syntax for defining
and referring to an "ID"?

I tried making a file called "report.org" like this:

* report output
:PROPERTIES:
:CUSTOM_ID: foo
:END:

| abcde | 17 |
| xyzzy | 42 |


And then I tried to refer to it from an Org-mode spreadsheet in a different
file, like this:

#+TBLFM: @2$1=remote(file:report.org#foo, @2$2)


But it said "invalid reference".

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