UiPath-ADAv1 Excel and Email Automation Practice Question
Exhibit
EXHIBIT: Workflow: 1. Excel Process Scope 2. Use Excel File (FileA.xlsx) 3. Read Range (Sheet1) 4. Write Cell (Sheet1, A1, "Processed") 5. Close Workbook (FileA.xlsx) 6. Send SMTP Mail Message ERROR: System.IO.IOException: The process cannot access the file 'FileA.xlsx' because it is being used by another process.
Refer to the exhibit. Why does the automation throw an IOException when the workflow attempts to access 'FileA.xlsx'?
⚠ Common exam trap
Candidates assume the file is locked by an external user, failing to realize the 'Excel Process Scope' keeps the file handle open until the process terminates.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The Excel Process Scope is keeping the Excel application instance open.
The error occurs because the 'Excel Process Scope' keeps the Excel application process alive even after individual file activities finish. If the robot tries to interact with the file again or if another process locks it, the scope's persistence causes an IO exception. Explicitly closing the workbook within the scope or ensuring proper disposal is key to preventing these lingering file locks in enterprise Excel automation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The file is not in the correct folder.
Why it's wrong here
If the file were not in the correct folder, the error would be 'FileNotFoundException', not an 'IOException' regarding a process lock. The current error explicitly states that the file is open and locked by another process, confirming that the path is correct but the file is currently inaccessible.
- ✓
The Excel Process Scope is keeping the Excel application instance open.
Why this is correct
The Excel Process Scope persists the Excel application to optimize performance. If the file is not properly closed or if a background thread is still holding the file handle, subsequent attempts to interact with the file will fail. Managing the lifecycle correctly within the scope is essential to release handles.
- ✗
The Read Range activity is still running in the background.
Why it's wrong here
Activities in UiPath are generally synchronous. The Read Range activity completes before the next activity starts, so it would not be actively running while the bot is trying to execute later steps. The lock is caused by the application process management, not by an individual activity remaining active.
- ✗
The Send SMTP Mail Message activity is accessing the Excel file.
Why it's wrong here
The Send SMTP Mail Message activity is entirely unrelated to Excel file handles. It manages network connections to mail servers. It cannot lock an Excel file, as it does not interact with the filesystem in a way that would trigger an IO lock on a spreadsheet file.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official UiPath exam blueprint
This UiPath-ADAv1 practice question is part of Courseiva's free UiPath certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the UiPath-ADAv1 exam.