We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Dette websted vil have begrænset funktionalitet, mens vi gennemgår vedligeholdelse for at forbedre din oplevelse. Hvis en artikel ikke løser dit problem, og du vil stille et spørgsmål, har vi vores supportfællesskab, der venter på at hjælpe dig på @FirefoxSupport på Twitter og/r/firefox på Reddit.

Søg i 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.

Læs mere

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

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

Alle svar (3)

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.

Ændret af WestEnd den

more options

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

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"