For some complex spreadsheet projects, it's not uncommon for sheets to pull data in from either another worksheet in the same workbook or another worksheet from another workbook. In Google Sheets, this would be accomplished with the IMPORTRANGE() formula. This would be helpful for things like reducing workbook complexity, isolating concerns, gating collaborator access, and abstracting sensitive information.

So basically, an IMPORTRANGE() equivalent for Proton Sheets. Thanks for your time!