Created chart from spreadsheet, it collapses to the size of a postage stamp, and prints at that size as well.

Spreadsheet is good; but chart is very small. When you go to edit it expands, but then it collapses. When printed it is the size of a postage stamp.

What operating system, LO version, and file format (ODS, XLS, XLSX) are you using? Are there any other details about your data and chart that might be relevant?