A staple delivery system for attaching a sheet-like implant to tissue or bone comprising: a fixation tool (70, 144) comprising: a fixation tool shaft having a proximal end and a distal end and at least a pair of prongs (154A, 154B) extending from the distal end of the fixation tool shaft to form pilot holes when urged into tissue or bone; a staple push rod slidably disposed within a lumen of the fixation tool shaft, and a staple comprising: a first arm, having a proximal end and a distal end, and a second arm having a proximal end and a distal end with a bridge extending from the proximal end of the first arm to the proximal end of the second arm; a first fluke having a proximal end abutting the distal end of the first arm, the first fluke extending distally from the first arm, the first fluke having a lateral extent larger than a lateral extent of the first arm and mounted eccentrically thereto, the first fluke including a proximal surface projecting at an outward angle in a proximal direction away from the distal end of the first arm to engage the tissue or bone when-inserted therein causing the first fluke to rotate in response to a pullout force on the bridge; and, a second fluke having a proximal end abutting the distal end of the second arm and extending distally, the second fluke having a lateral extent larger than the lateral extent of the second arm and mounted eccentrically thereto with the second fluke including a proximal surface projecting at an outward angle in a proximal direction and away from the second arm near the proximal end of the second fluke to engage the tissue or bone when inserted therein causing the second fluke to rotate in response to a pullout force on the bridge, wherein each of the first fluke and the second fluke include a lumen (124A, 124B) extending from the proximal end to the distal end thereof spaced laterally from the respective arm mounted thereto, and characterized in that the staple push rod includes at least a pair of stakes (134A, 134B) positioned relative to the prongs (154A, 154B) so that the stakes (134A, 134B) advance into the pilot holes (162A, 162B) when the stakes (134A, 134B) are moved in the distal direction and in that the pair of stakes (134A, 134B) are configured to extend into the lumens (124A, 124B) of the first fluke and the second fluke, and in that the pair of stakes (134A, 134B) are adapted to apply a force to the flukes (106A, 106B) as the flukes (106A, 106B) are deployed into the tissue or bone. a fixation tool (70, 144) comprising: a fixation tool shaft having a proximal end and a distal end and at least a pair of prongs (154A, 154B) extending from the distal end of the fixation tool shaft to form pilot holes when urged into tissue or bone; a staple push rod slidably disposed within a lumen of the fixation tool shaft, and a fixation tool shaft having a proximal end and a distal end and at least a pair of prongs (154A, 154B) extending from the distal end of the fixation tool shaft to form pilot holes when urged into tissue or bone; a staple push rod slidably disposed within a lumen of the fixation tool shaft, and a staple comprising: a first arm, having a proximal end and a distal end, and a second arm having a proximal end and a distal end with a bridge extending from the proximal end of the first arm to the proximal end of the second arm; a first fluke having a proximal end abutting the distal end of the first arm, the first fluke extending distally from the first arm, the first fluke having a lateral extent larger than a lateral extent of the first arm and mounted eccentrically thereto, the first fluke including a proximal surface projecting at an outward angle in a proximal direction away from the distal end of the first arm to engage the tissue or bone when-inserted therein causing the first fluke to rotate in response to a pullout force on the bridge; and, a second fluke having a proximal end abutting the distal end of the second arm and extending distally, the second fluke having a lateral extent larger than the lateral extent of the second arm and mounted eccentrically thereto with the second fluke including a proximal surface projecting at an outward angle in a proximal direction and away from the second arm near the proximal end of the second fluke to engage the tissue or bone when inserted therein causing the second fluke to rotate in response to a pullout force on the bridge, a first arm, having a proximal end and a distal end, and a second arm having a proximal end and a distal end with a bridge extending from the proximal end of the first arm to the proximal end of the second arm; a first fluke having a proximal end abutting the distal end of the first arm, the first fluke extending distally from the first arm, the first fluke having a lateral extent larger than a lateral extent of the first arm and mounted eccentrically thereto, the first fluke including a proximal surface projecting at an outward angle in a proximal direction away from the distal end of the first arm to engage the tissue or bone when-inserted therein causing the first fluke to rotate in response to a pullout force on the bridge; and, a second fluke having a proximal end abutting the distal end of the second arm and extending distally, the second fluke having a lateral extent larger than the lateral extent of the second arm and mounted eccentrically thereto with the second fluke including a proximal surface projecting at an outward angle in a proximal direction and away from the second arm near the proximal end of the second fluke to engage the tissue or bone when inserted therein causing the second fluke to rotate in response to a pullout force on the bridge,