ThousandSeperator doesn't work after SaveAs a new excel

[EP-Toushirou]

Description

original excel:
1.origin state:

2.click general

3.and then click thousand seperator

4.The number turn back to thousandSeperator.It's right.

after saveAs a new excel:
1.origin state:

2.click general

3.and then click thousand seperator

4.It's not work,that's the problem. Thank you.
Still at 1800.

Steps to reproduce the issue:

func ThousandSeperator() {
	f, _ := excelize.OpenFile("ThousandSeperator.xlsx")
	f.SaveAs("ThousandSeperator_new.xlsx")
}

ThousandSeperator.xlsx

Describe the results you received:
Not same as the original excel

Describe the results you expected:
Same as the original excel

Output of go version:

go1.13.7 windows/amd64

Excelize version or commit ID:

2020.05.05 master

Environment details (OS, Microsoft Excel™ version, physical, etc.):
win10,office2019

[EP-Toushirou]

Thank you!

[xuri]

Thanks for your donation. I have added you're into the donator page.

[EP-Toushirou]

😁😁

[EP-Toushirou]

@xuri Hi,here has a follow-up questions:
click thousand seperator cause the style disappear after SaveAs function.

click:

then: