Help mapping data, my organization has asked me to use my ArcGIS skills to take an existing Excel file to map the projects we are currently engaged in by City and County. I'm looking for the appropriate file type and data fields required to alter an existing Excel document to be able to upload the data set into our ArcGIS Online account and map the locations. 
Any assistance would be greatly appreciated. I'm open to scheduling a Zoom or Teams meeting to share the current file and talk through the necessary steps to be able to map the data. 
Thank you,
Josh Young
josh@scedd.us | 308-455-4773