We have found 2 software records in our database eligible for .png to .xls file format conversion.
You can import pictures (.png for example) to any of the lists in an Excel spreadsheet (.xls, .xslx) as an object, but that's not really png to xls conversion in the traditional sense. You can do that with most spreadsheets editors as it is one of the most common features.
Some online converters offer this conversion, but they will basically place a picture in empty spreadsheet in most cases.
PNG
Files with png extensions are commonly used for Portable Network Graphic files. PNG is a bitmap image mainly used on web pages.
XLS
Files with xls extension are best known as spreadsheets from Microsoft Excel. A spreadsheet is basically a grid of cells sorted in rows and columns. Each cell can contain text, numeric or formula data. Excel XLS spreadsheets can be opened in most other similar programs, such as OpenOffice.org Calc.