It's unfortunate you are unable to provide useful responses.

Intuits own page notes:

Recommended: a spreadsheet program that supports a tab-delimited format, such as Microsoft Excel.

• The data will appear in columns that are easier to read and edit.
• Opening the sample files in any text editor is much more difficult..

IIF Overview: import kit, sample files, and headers (intuit.com)

From there you just need to save to a text file. I've done it.

Does EMPL mean you're an employee? If yes, why does your group keeps answering the wrong question and cluttering this thread. For the second time, I am trying to save an IIF file loaded into Excel. It's loaded per YOUR company's guidance. I've actually saved it so stop writing it isn't possible. Whether you consider this converting or not - the end result is a file in IIF format.

I'm looking for comments from others who also are actually doing this to hear how they have optimized the saving of these files from Excel.