Learn how to open an XML File in Excel, Word, Chrome, and Edge on a Windows computer using the methods mentioned in this post.

If you cannot open an Excel file and see Excel cannot open the file because the file format or extension is not valid error, see this post.

Excel and Google Sheets have three functions to calculate the internal rate of return: IRR, XIRR, and MIRR. Learn how these functions can calculate investment returns.

If you are interested in investing in cryptocurrency, then you need to know how to get started. Learn about the risks and potential upside.