Ids-1-.xls «95% POPULAR»

When working with a file like "ids-1-.xls", some potential issues to watch out for include:

The legend goes that if you try to convert ids-1-.xls to a modern .xlsx format, the formatting breaks, revealing a hidden message in Wingdings that reads: "The primary key is not unique." ids-1-.xls

Tools: Excel charts, Tableau/Power BI, Python (matplotlib, seaborn, plotly), R (ggplot2). When working with a file like "ids-1-

He typed: What is this file?