Although SQL Server Integration Services, hereinafter SSIS, is capable of uploading Excel files, in most cases it can be time consuming because any small modifications to the Excel files can make the SSIS crash. For that reason, the best option is usually to transform those Excel files into .csv format, since uploading text files will cause you significantly less issues than the Excel files.
You can quickly save any Excel file as csv manually by saving as .csv from within Excel. However, it becomes an issue when you have to do the same for a lot of Excel files, or in cases were you need the change to be done automatically.
In this post, we will explain how to do this format change automatically using PowerShell and how to loop through files in the same directory in order to upload several Excel files together using SSIS as the main tool for the whole process.