spread.js 公式设置问题。

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对某单个单元格设置公式如下：

<div><div>=SUM(F7,F8,F9,F10,F11,F12,F13,F14,F15,F16,F17,F18,F19,F20,F21,F22,F23,F24,F25,F26,F27,F28,F29,F30,F31,F32,F33,F34,F35,F36,F37,F38,F39,F40,F41,F42,F43,F44,F45,F46,F47,F48,F49,F50,F51,F52,F53,F54,F55,F56,F57,F58,F59,F60,F61,F62,F63,F64,F65,F66,F67,F68,F69,F70,F71,F72,F73,F74,F75,F76,F77,F78,F79,F80,F81,F82,F83,F84,F85,F86,F87,F88,F89,F90,F91,F92,F93,F94,F95,F96,F97,F98,F99,F100,F101,F102,F103,F104,F105,F106,F107,F108,F109,F110,F111,F112,F113,F114,F115,F116,F117,F118,F119,F120,F121,F122,F123,F124,F125,F126,F127,F128,F129,F130,F131,F132,F133,F134,F135,F136,F137,F138,F139,F140,F141,F142,F143,F144,F145,F146,F147,F148,F149,F150,F151,F152,F153,F154,F155,F156,F157,F158,F159,F160,F161,F162,F163,F164,F165,F166,F167,F168,F169,F170,F171,F172,F173,F174,F175,F176,F177,F178,F179,F180,F181,F182,F183,F184,F185,F186,F187,F188,F189,F190,F191,F192,F193,F194,F195,F196,F197,F198,F199,F200,F201,F202,F203,F204,F205,F206,F207,F208,F209,F210,F211,F212,F213,F214,F215,F216,F217,F218,F219,F220,F221,F222,F223,F224,F225,F226,F227,F228,F229,F230,F231,F232,F233,F234,F235,F236,F237,F238,F239,F240,F241,F242,F243,F244,F245,F246,F247,F248,F249,F250,F251,F252,F253,F254,F255,F256,F257,F258,F259,F260,F261,F262)</div></div><div></div>

复制代码

然后控制台报错说：无效的公式

猜测问题是因为设置的单元格过多了。
如上设置255个（262 - 7 = 255）单元格合计就报错了，当我设置公式 254个（F7 ---- F261）并不会报错。

这个有什么办法解决么。