Rabeya Islam

About author

Rabeya Islam, BSc, Computer Science and Engineering, East West University, Bangladesh, has been working with the SOFTEKO for more than one and half years. She has written some articles for ExcelDemy. Currently, she is working as the team leader, oversees the day-to-day work, and leads the SQA team Excel Extensions project. She has built the workflow and the structure of the extension testing for the team. Her work and learning interests vary from Microsoft Office Suites, VBA, and debugging software.


Software Quality Assurance Engineer in Microsoft Office Extension Development project in SOFTEKO.

Lives in

Dhaka, Bangladesh.


B.sc in Computer Science and Engineering (CSE), East West University.


Content Writing, C, C++, Python, HTML, CSS, Bootstrap, SQL, Microsoft Office, Git, GitHub, Trello, Jira, Postman, Selenium, etc.


  • Technical Content Writing
  • Team Management
  • Software Engineer
  • Undergraduate Projects
    • Education Certification and Verified Documents Sharing System by Blockchain


  • Currently working as Team Leader of SQA team of Excel Extensions project.
  • Started technical content writing of Excel & VBA in October 2021.

Research & Publication

Latest Posts From Rabeya Islam

[Fixed] Excel Failed to Launch in Safe Mode (4 Easy Solutions)

When any unknown error causes the Excel file to not open, Excel safe mode can be a way to launch the file. This special mode can be run in multiple ways. ...

How to Create Dynamic Scatter Plot in Excel (3 Easy Methods)

The scatter plot is used to plot a diagram of two or multiple variables using Cartesian coordinates. It shows the relation between the variables through a ...

How to Perform Bank Reconciliation Using VLOOKUP in Excel

Accountants always have to do reconciliations in their daily job. It helps to observe and maintain equality in both-sided transaction ledgers. One of the most ...

How to Apply Engineering Number Format in Excel (2 Easy Ways)

Scientific or engineering work must show the number format differs from other forms. As it makes scientists work more efficiently, it also helps them to ...

How to Lookup Next Largest Value in Excel (4 Easy Ways)

We may need to lookup the next largest value in Excel, as we work on a dataset. Excel has functions that can help us to solve this problem. In this article, I ...

How to Use SUMIF and ISBLANK to Sum for Blank Cells in Excel

In this article, you will learn how to SUMIF values with the ISBLANK function in Excel. Sometimes, in the dataset, we have empty cells to check and add values ...

Browsing All Comments By: Rabeya Islam
  1. Dear HUSAIN DINI,

    Thanks for sharing your concern with us.

    The problem you are facing may occur if you misspell the name of the function in the worksheet cell.

    Another reason can be the use of incorrect syntax. Make sure to use all the arguments for the function in the correct order and separate them by a comma.

    For better understanding, you can share your Excel file with us in Exceldemy Forum, then we can find the specific problem in your file and solve that.

    Don’t forget to check our other articles for your Excel guidance.

    Rabeya Islam | Excel & VBA Content Developer | ExcelDemy

Advanced Excel Exercises with Solutions PDF