UiPath errors / Other
The process cannot access the file because it is being used by another process
Cause
An Excel file stays locked by a prior Excel activity or an orphaned Excel.exe because the Application Scope was not closed cleanly, or multiple branches access the same file at once.
Fix
Wrap all Excel operations in one Excel Application Scope (or Use Excel File) so the handle is released on exit. Avoid Append Range in loops; accumulate rows in a DataTable and write once. Kill lingering Excel processes with a Kill Process activity at the start. Ensure no conflicting Excel instance is open.
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