如何一键解决Excel中所有行和列的数据求和？

[[{"txt": "\u6211\u4eec\u4f1a\u7ecf\u5e38\u4f7f\u7528Excel\u8f6f\u4ef6\u5236\u4f5c\u5404\u7c7b\u8868\u683c\uff0c\u5bf9\u4e8e\u8868\u683c\u4e2d\u884c\u548c\u5217\u4e2d\u7684\u6570\u636e\u6c42\u548c\uff0c\u6211\u4eec\u4e00\u822c\u662f\u4f7f\u7528\u6c42\u548c\u516c\u5f0f\u6328\u4e2a\u8ba1\u7b97\u3002\u867d\u8bf4\u4e5f\u80fd\u8fbe\u5230\u76ee\u7684\uff0c\u4f46\u662f\u8fd8\u662f\u6bd4\u8f83\u8d39\u65f6\u3002\u4eca\u5929\u548c\u5927\u5bb6\u5206\u4eab\u4e0b\u5982\u4f55\u4e00\u952e\u89e3\u51b3\u8868\u683c\u4e2d\u6240\u6709\u884c\u548c\u5217\u7684\u6570\u636e\u6c42\u548c\u3002"}, {"img": ["https://exp-picture.cdn.bcebos.com/732a12e265e7340fd729399735b9763e20c2b4e5.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}], [{"txt": ["\u5de5\u5177/\u539f\u6599"]}, {"txt": "\u7535\u8111"}, {"txt": "Excel\u8f6f\u4ef6"}], [{"txt": ["\u65b9\u6cd5/\u6b65\u9aa4"]}, {"txt": "\u5e73\u5e38\u8ba1\u7b97\u67d0\u884c\u6216\u67d0\u5217\u4e2d\u6570\u636e\u7684\u603b\u548c\uff0c\u4e00\u822c\u90fd\u662f\u5148\u9009\u4e2d\u4e00\u4e2a\u7a7a\u767d\u5355\u5143\u683c\uff0c\u7136\u540e\u70b9\u51fb\u201c\u5f00\u59cb\u201d\u83dc\u5355\u4e2d\u7684\u201c\u6c42\u548c\u201d\u9009\u9879\u3002\u5982\u56fe\u6240\u793a\uff1a"}, {"img": ["https://exp-picture.cdn.bcebos.com/777f3fc2bbd6e1d0d7b9b7d50d254193cfe8afe5.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u63a5\u7740\u62c9\u9009\u9700\u6c42\u548c\u7684\u6570\u636e\uff0c\u518d\u70b9\u51fb\u201cEnter\u201d\uff0c\u5373\u53ef\u5f97\u5230\u8be5\u884c\u6216\u8be5\u5217\u6570\u636e\u7684\u603b\u548c\u3002\u5982\u56fe\u6240\u793a\uff1a"}, {"img": ["https://exp-picture.cdn.bcebos.com/87645f93cee8b004944afcbb79260d9a300ea9e5.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1", "https://exp-picture.cdn.bcebos.com/0cdb2f0e1799e92a7de96ff4e1fec314f0c5a0e5.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u4f7f\u7528\u4ee5\u4e0a\u65b9\u6cd5\u6211\u4eec\u4e5f\u80fd\u6c42\u5f97\u884c\u548c\u5217\u4e2d\u6570\u636e\u7684\u603b\u548c\uff0c\u53ef\u662f\u6bd4\u8f83\u8d39\u65f6\u3002\u4e0b\u9762\u5c31\u5411\u5927\u5bb6\u4ecb\u7ecd\u4e00\u4e2a\u66f4\u5feb\u6377\u7684\u65b9\u6cd5....\u6211\u4eec\u9009\u4e2d\u6240\u6709\u6570\u636e\uff0c\u5728\u9009\u4e2d\u6570\u636e\u7684\u65f6\u5019\u8fd8\u9700\u591a\u9009\u4e2d\u4e00\u884c\u548c\u4e00\u5217\u7684\u7a7a\u767d\u5355\u5143\u683c\u3002\u5982\u56fe\u6240\u793a\uff1a"}, {"img": ["https://exp-picture.cdn.bcebos.com/6bbfdd14f1c595ee8c909a9327530688902c9ae5.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u7136\u540e\u6211\u4eec\u540c\u65f6\u70b9\u51fb\u952e\u76d8\u4e0a\u7684\u201cAlt\u201d\u952e+\u201c=\u201d\u952e\uff0c\u8fd9\u65f6\u4f1a\u53d1\u73b0\u9009\u4e2d\u7684\u7a7a\u767d\u5355\u5143\u683c\u5185\u90fd\u81ea\u52a8\u586b\u5145\u4e0a\u8be5\u884c\u548c\u8be5\u5217\u6240\u6709\u6570\u636e\u7684\u6c42\u548c\u6570\u503c\u5566\uff01\u5982\u56fe\u6240\u793a\uff1a"}, {"img": ["https://exp-picture.cdn.bcebos.com/07c98f2ca5cadce844192d48fcf7980e5e2095e5.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1", "https://exp-picture.cdn.bcebos.com/423041db3620b93a10d80d71ad0f8835dc8a8ae5.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}]]