Set the number format, font, style or size in the document before subscribing to the edition file.
NOTE: The above solution only needs to be used from Spreadsheet to Spreadsheet or Table to Table. For example, creating a Spreadsheet edition file and subscribing from a Word Processing file still allows modification of the Subscriber.
If you have further difficulties with formatting the data, please refer to the article "Text Formatting Difficulties With Publish and Subscribe" (article# 55659).