I am not aware of this object much but for almost my 35 objects both below approaches work
1) SARI: Just activate the infoset before data deletion
2) T codes which were used initially before data deletion. Normally such T codes have provision for retrieval of archived data. They have button of "DATASOURCE". example FB03, FBL3N, FBL5n, FBL1n
3) Also you can read file from T code AS_AFB.
4) Check in SARA if you can can see button for read or not.