It seems you are looking for assistance with a file from January 31st , but the intent is a bit unclear. Could you clarify if you mean:

Please let me know more so I can help you draft or find exactly what you need!

of a "piece" (document) from that specific date using Version History ?

Find what's changed in a file - Computer - Google Docs Editors Help

or file that was last modified on January 31st ?

using the Email Draft building block in Google Docs?