解决方法：
<td style="mso-number-format:'\@';">2105300716356709e1</td>添加 style="mso-number-format:'\@'; 样式，转化为文本格式
其他格式：
| mso-number-format:"0" | NO Decimals |
| mso-number-format:"0\.000" | 3 Decimals |
| mso-number-format:"\#\,\#\#0\.000" | Comma with 3 dec |
| mso-number-format:"mm\/dd\/yy" | Date7 |
| mso-number-format:"mmmm\ d\,\ yyyy" | Date9 |
| mso-number-format:"m\/d\/yy\ h\:mm\ AM\/PM" | D -T AMPM |
| mso-number-format:"Short Date" | 01/03/1998 |
| mso-number-format:"Medium Date" | 01-mar-98 |
| mso-number-format:"d\-mmm\-yyyy" | 01-mar-1998 |
| mso-number-format:"Short Time" | 5:16 |
| mso-number-format:"Medium Time" | 5:16 am |
| mso-number-format:"Long Time" | 5:16:21:00 |
| mso-number-format:"Percent" | Percent - two decimals |
| mso-number-format:"0%" | Percent - no decimals |
| mso-number-format:"0\.E+00" | Scientific Notation |
| mso-number-format:"\@" | Text |
| mso-number-format:"\#\ ???\/???" | Fractions - up to 3 digits (312/943) |
| mso-number-format:"\0022£\0022\#\,\#\#0\.00" | £12.76 |
| mso-number-format:"\#\,\#\#0\.00_ \;\[Red\]\-\#\,\#\#0\.00\ " | 2 decimals, negative numbers in red and signed (1.56 -1.56) |
参考：
