最后一份资料”ISNUMBER+FIND函数查找某关键字符.xlsx“点击下载失败，报错如下：
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<Error>
<Code>SignatureDoesNotMatch</Code>
<Message>The request signature we calculated does not match the signature you provided. Check your key and signing method.</Message>
<RequestId>68872D67EE5BBF3231660A31</RequestId>
<HostId>yunfa-img.yunfa.vip</HostId>
<OSSAccessKeyId>LTAI5tK25Sig2jSMv4rBGrTt</OSSAccessKeyId>
<SignatureProvided>nPcLfPVuz4hG59tKEYm/gA7cxBg=</SignatureProvided>
<StringToSign>GET 1753693062 /yunfa-img/keke_video_base/file/20250704/xZFazjO5JNnOFwOnPWof.xlsx?response-content-disposition=attachment;filename=ISNUMBER FIND函数查找某关键字符.xlsx</StringToSign>
<StringToSignBytes>47 45 54 0A 0A 0A 31 37 35 33 36 39 33 30 36 32 0A 2F 79 75 6E 66 61 2D 69 6D 67 2F 6B 65 6B 65 5F 76 69 64 65 6F 5F 62 61 73 65 2F 66 69 6C 65 2F 32 30 32 35 30 37 30 34 2F 78 5A 46 61 7A 6A 4F 35 4A 4E 6E 4F 46 77 4F 6E 50 57 6F 66 2E 78 6C 73 78 3F 72 65 73 70 6F 6E 73 65 2D 63 6F 6E 74 65 6E 74 2D 64 69 73 70 6F 73 69 74 69 6F 6E 3D 61 74 74 61 63 68 6D 65 6E 74 3B 66 69 6C 65 6E 61 6D 65 3D 49 53 4E 55 4D 42 45 52 20 46 49 4E 44 E5 87 BD E6 95 B0 E6 9F A5 E6 89 BE E6 9F 90 E5 85 B3 E9 94 AE E5 AD 97 E7 AC A6 2E 78 6C 73 78 </StringToSignBytes>
<EC>0002-00000040</EC>
<RecommendDoc>https://api.aliyun.com/troubleshoot?q=0002-00000040</RecommendDoc>
</Error>
请修正。
