What sort of "database" do you want to create?
What information do you want to save in it?
What do you want to do with the information.
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Excel is OK for relatively small, simple databases.
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You can define "relationships" between "tables" in Excel using PowerPivot
Data Model / Power Pivot - Overview and Learning
https://support.microsoft.com/en-us/office/power-pivot-overview-and-learning-f9001958-7901-4caa-ad80-028a6d2432ed
Excel for Microsoft 365 Excel 2021 Excel 2019 Excel 2016 Excel 2013
Power Pivot is a data modeling technology that lets you create data models, establish relationships, and create calculations. With Power Pivot you can work with large data sets, build extensive relationships, and create complex (or simple) calculations, all in a high-performance environment, and all within the familiar experience of Excel.
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Create a relationship between tables in Excel
https://support.microsoft.com/en-us/office/create-a-relationship-between-tables-in-excel-fe1b6be7-1d85-4add-a629-8a3848820be3
Have you ever used VLOOKUP to bring a column from one table into another table? Now that Excel has a built-in Data Model, VLOOKUP is obsolete. You can create a relationship between two tables of data, based on matching data in each table. Then you can create Power View sheets and build PivotTables and other reports with fields from each table, even when the tables are from different sources. For example, if you have customer sales data, you might want to import and relate time intelligence data to analyze sales patterns by year and month.
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