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Sure, I can help you with that! To generate a calendar in Power BI, you can follow these steps: 1. In Power BI Desktop, go to the "Modeling" tab. 2. Click on "New Table" and type in the following formula: Calendar = CALENDAR (DATE(2019,1,1), DATE(2025,12,31)) This formula creates a calendar table with dates from January 1st, 2019 to December 31st, 2025. You can adjust the dates to fit your needs. 3. Click "Load" to load the table into your data model. To properly link all sources of data, you need to identify the common fields between them. For example, if you have a table for total sales and a table for sales per employee, you can link them using the Employee ID field. Similarly, if you have a table for timesheets, you can link it to the sales per employee table using the Employee ID field. To create a master file that compiles everything, you can create a new table that combines all the data you need. For example, you can create a table with the following columns: • Date • Employee ID • Total Sales • Sales per Employee • Hours Worked You can then use the "Lookup" or "Merge" functions in Power BI to combine the data from your existing tables into this new table. Once you have this master table, you can use it to create reports and visualizations in Power BI. To keep your data as clean as possible, you should follow some best practices, such as: • Remove any unnecessary columns or rows from your tables. • Use descriptive names for your tables and columns. • Make sure your data is consistent and formatted correctly. • Use relationships between tables instead of copying data. • Use measures instead of calculated columns to avoid redundancy and improve performance. I hope this helps you get started with your Power BI model. Let me know if you have any further questions!