You could have downloaded CheckPrintR+ 5.10 for Mac from our application library for free. The actual developer of this Mac application is Michel Bujardet. The software lies within Business Tools, more precisely Finances.
From the developer:
Check Print'R+ is an easy-to-use program that lets you write and print checks directly from your desk. You simply enter the name of the payee (made order to) and the numeric amount. The spelled out amount is automatically generated. No need to write out complicated sentences.
The check is printed with special MICR characters at the bottom which will be used by banks for processing.
You may want to check out more software for Mac, such as Personal Finance, Investors Toolbox or Small Business Tracker Deluxe, which might be related to CheckPrintR+.