Meine Kollegin tippt das Wort in die Suchleiste und findet die Datei sofort.

Because Kollegin is a feminine singular noun, and here it is the subject of the sentence, so it is in the nominative case.

The possessive word mein changes its ending depending on gender, number, and case:

• mein Kollege = my male colleague
• meine Kollegin = my female colleague

So meine is the correct nominative feminine singular form.

Kollegin means a female colleague, while Kollege means a male colleague.

German often has masculine and feminine noun pairs like this:

• der Kollege = male colleague
• die Kollegin = female colleague

The ending -in is a very common way to form the feminine version of a noun referring to a person.

Because both verbs are in the present tense and agree with a third-person singular subject: meine Kollegin.

Conjugation:

• tippen

  • ich tippe
  • du tippst
  • er/sie/es tippt

• finden

  • ich finde
  • du findest
  • er/sie/es findet

Since meine Kollegin = she, the correct forms are tippt and findet.

It can mean either one, depending on context.

German does not usually have a separate everyday tense for is typing the way English does. So:

• Meine Kollegin tippt ... can mean
  
  • My colleague types ...
  • My colleague is typing ...

In normal German, the simple present often covers both meanings.

Because Wort is a neuter noun: das Wort.

In this sentence, das Wort is the direct object of tippt, so it is in the accusative case. For neuter singular nouns, the article is still das in both nominative and accusative:

• nominative: das Wort
• accusative: das Wort

So the form does not change here.

Because in is a two-way preposition. It can take:

• accusative for direction / movement into
• dative for location / position

Here, the phrase means entering the word into the search bar, so German uses the accusative:

• in die Suchleiste

Compare:

• Sie tippt das Wort in die Suchleiste.
  She types the word into the search bar.
• Das Wort steht in der Suchleiste.
  The word is in the search bar.

So die is used because the idea is directional, not just static location.

Suchleiste is a compound noun, which is very common in German.

It is made from:

• Suche = search
• Leiste = bar

So Suchleiste literally means search bar.

A useful rule for German compound nouns: the last part determines the gender. Since Leiste is feminine (die Leiste), the whole compound is also feminine:

• die Suchleiste

Because the same subject, meine Kollegin, applies to both verbs:

• tippt
• findet

German, like English, often leaves out the repeated subject in a sentence joined by und when it is obvious:

• Meine Kollegin tippt das Wort in die Suchleiste und findet die Datei sofort.

You could also repeat it for emphasis or clarity:

• Meine Kollegin tippt das Wort in die Suchleiste, und sie findet die Datei sofort.

But without sie, the sentence sounds more natural and efficient here.

Because Datei is a feminine noun:

• die Datei = the file

It is the direct object of findet, so it is in the accusative case. For feminine singular nouns, the definite article is die in both nominative and accusative:

• nominative: die Datei
• accusative: die Datei

So again, the form stays the same.

Sofort means immediately, and its position is fairly flexible.

In this sentence, putting it at the end sounds very natural:

• ... und findet die Datei sofort.

It can also appear in other places, depending on emphasis:

• ... und findet sofort die Datei.
• Sofort findet meine Kollegin die Datei.
  This is possible, but it sounds more marked or literary.

So the end position is a very normal, neutral choice.

No. Tippen can have a few meanings depending on context.

Common ones include:

• to type
• to tap
• to guess / predict
• to bet on

In this sentence, because of das Wort in die Suchleiste, the meaning is clearly to type or to enter text.

So context tells you which meaning is intended.