To recombine these small files into one file, right-click the first chunk (that says "001") and select Show More Options > 7-Zip > Extract Files.

How to add a file to multiple folders in Google Drive Use this trick when your document or spreadsheet needs to be in two (or more) places at once.

Learn how to merge multiple CSV files into one Excel sheet. You can combine or join more than one CSV file into one Excel Worksheet.