Import AP Invoice batch

SOLVED

I am hoping to create a template for importing invoice batches. We have some monthly invoicing with almost 200 customers that gets processed by using the A/R Periodic Processing Recurring Charge Batch feature. However, I am hoping there may be a way to import these files as everything is done through excel by program operations. Are there any guides on creating an import for these sort of transactions? Or any suggestions on ways to simplify these sort of processes? The total amounts will change monthly and therefore we still need to review and manually adjust each entry with our current system.