Excel cannot open file… invalid file format or file extention
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Hi,
When I export orders and then try opening them in Excel I get the error above, regardless if I export as a .xlsx or .csv file.
I had included a custom field but have since removed it and saved settings but I’m still getting the error.
It works on my local machine (using wampserver) both with custom field and without.
See this pastebin for the settings I’m using: https://pastebin.com/MdrEA13A
Any ideas?
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