This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Denne tråden ble arkivert. Still et nytt spørsmål dersom du trenger hjelp.

Firefox appending xls to xlxs files at time of downloading a file

SaiKiranP
SaiKiranP
more options

We are using a java application to download excel file but at the time of downloading Firefox itself appending .xls extension to the .xlsx file

We are using a java application to download excel file but at the time of downloading Firefox itself appending .xls extension to the .xlsx file

All Replies (3)

WestEnd
WestEnd
more options

That isn't a FF doing that is the site doing format if it comes with the newer MS extension then that is what it is. If you having problems from that site then you need to contact them about it.

Endret av WestEnd

SaiKiranP
SaiKiranP Eieren av spørsmålet
more options

We don't have the issue using other browsers like IE and Chrome. only with Firefox.

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

I assume you mean JDK on the server sending HTML/JavaScript/CSS to Firefox, and not a Java plugin applet (which no longer runs after Firefox 52 Extended Support Release).

Do you know what content-type header the web app is sending for XLSX files? I think these are preferred:

  • XLS: "application/vnd.ms-excel"
  • XLSX: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"