Excel Business & Project Forms Templates are incredibly beneficial tools that can provide structure, standardization, and efficiency to both business and personal tasks. 

1. For a business 

   - Streamlined Processes: These templates can streamline various aspects of business operations like project management, financial reporting, inventory tracking, sales/purchases tracking, and employee scheduling. 
   
   - Standardization: Having a standardized template ensures that everyone in the business inputs data in a consistent manner, making it easier to compare and data across different teams or time periods. 
   
   - Efficiency: They save time and resources by eliminating the need to start from scratch each time a similar task or report needs to be undertaken. Pre-formatted templates can be reused and modified as per the specific needs.
   
   - Accuracy: Templates often come with in-built functions and formulas which helps in reducing errors.
   
   - Better Decision Making: These templates can assist in providing business insights that can guide strategic decision-making process.

2. For personal use:

   - Budgeting & Finance Management: Excel templates are incredibly useful for managing personal finances, setting up budgets, tracking expenses, savings goals, etc.
   
   - Task Management: You can use different templates for creating to-do lists, meal planning, maintaining fitness goals, etc.
   
   - Planning: Templates could also be used for planning personal projects or events such as a wedding, holiday planning, etc.
   
   - Learning: It also provides a great way to learn and improve Excel skills.

Overall, Excel Business & Project Forms Templates can simplify complex tasks, provide much-needed organization, and enhance productivity by saving valuable time.