Excel Shared Workbook Conflicts with Co-Authoring
The classic shared workbook conflicts with modern co-authoring in Excel. If you see 'This workbook is already shared,' disable co-authoring by unchecking 'Use the modern sharing experience' in Trust Center settings, then restart Excel.
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This asset is part of Share Workbook Not Working? Here’s the Fix published by SheetForge. Licensed under CC BY 4.0 — Free for personal use. Free to use with attribution.