Cleaning up old quicken files
in reviewing my quicken files in my document folder, there are a dozen or so files from years 2018-2020 with file names of xxxxxOFXLOG.dat , xxxOFXOLD.DAT , xxxx_SyncLog.dat, xxx_OldSyncLog.dat . These are sitting alongside several folders: "BACKUP" (containing old .QDF and .QDF-backup files), "VALIDATE" (empty), "INET" (contains "COMMON" folder which is empty), "Log" (with 1 old file: CONNLOG.TXT), "Config" (empty), "GPUCache" (with old data_x unix files),
In a completely separate folder location resides my current qdata.QDF file alongside four data files qdataOFXOLD.DAT, qdataOFXLOG.DAT, qdata_Synclog.dat, data_OldSyncLog.dat all with today's date on them.
My question is what these older files and folders are for and if I need to retain them ?