A text file with one record per line and the values separated by a character - a comma, a semicolon, a tab - is something almost every program can save. In the Data connection wizard, choose Text file. It reads .txt, .csv, .tsv, .psv and .pipe files. A text file holds just one list, so the wizard goes straight from the file to the options: Step 2 of 4, not 5.

Connection parameters
File name	The file. Pick it with the folder button next to the box.
Field separator	What separates the values: Tab, Semicolon, Comma, Pipe, Space or Other. For Other, type it in the box next to the list.
First row contains field names	On when the first line holds the column titles. Off, every line is data and the fields are called Column1, Column2 and so on.

How the file is read
Quotes	With a comma, a semicolon or a tab between the values, a value in double quotes can hold the separator, or a line break: "Red pen, fine" is one value, and the quotes aren't part of it. With any other separator, quotes are read as they are, as part of the value.
Spaces	Spaces before and after a value are left out.
Empty lines	Skipped. A line with only separators in it is a row with empty values - Skip empty rows, in the wizard's options, leaves those out too.
Accented letters	Labeljoy works out how the file is encoded, so an accented letter comes through as it should. UTF-8 is the safest choice when you save it.

Everything in a text file is text, numbers too. When you filter a field of numbers, it compares them as text.